Research Journal of Chemical Sciences ______________________________________________ ISSN 2231-606X Vol. 5(3), 30-36, March (2015) Res. J. Chem. Sci. International Science Congress Association 30 Inhibitory action of Thiazole and Triazole on mild Steel Corrosion in Hydrochloric acid Solutions Desai PS* and Indorwala NS Department of Chemistry, Arts, Science and Commerce College Kholwad, Kamrej Char Rrasta, Surat, 394185, INDIA Available online at: www.isca.in, www.isca.me Received 17th February 2015, revised 2nd March 2014, accepted 10th March 2014 AbstractThiazole [3-(piperazin-1-yl)benzo(d)isothiazole] and Triazoles (Hydroxybenzotriazole) were used as corrosion inhibitors for mild steel in hydrochloric acid solution. The inhibition efficiency depended on the concentration and type of the thiazole and triazoles. The inhibition efficiency ranged between 66 to 77 % at the highest concentration (25 mM), and between 33 to 44% at the lowest concentration (5 mM) of inhibitor in 1 M HCl solution. Inhibition efficiency decreased with rise in temperature, this corresponded to surface coverage of the metal by the inhibitor. The results also showed that, the inhibitors were adsorbed on the mild steel surface according to Langmuir, Temkins and Frundlich adsorption isotherm. Keywords: Corrosion, Mild steel, Hydrochloric acid, thiazole, triazole, Langmuir adsorption, Temkins adsorption isotherm. Introduction One of the most serious problems in the world, especially in an industry is corrosion which can be defined as the degradation of a materials properties or mass over time due to environmental effects. For most metallic materials, the natural tendency of materials compositional elements to return to their most thermodynamically stable state of formation of oxides or sulfides, or other basic metallic compounds generally considered to be ores with slow process rate. Under normal circumstances, iron and steel corrode in the presence of both oxygen and water. The rate of corrosion is increased by the acidity or the velocity of the water, by the motion of the metal, by an increase in the temperature or aeration, by the presence of certain bacteria, or by other less prevalent factors. Using inhibitors is an effective method for corrosion to control the corrosion of metals. Inhibitors are compounds that control corrosion processes of metals. Many studies on inhibitors have been carried out among them nitrogen (N) containing inhibitor is one of the focuses of the studies2-18. Many researchers have investigated many N containing inhibitors for the corrosion inhibition of metal in acid solutions, N containing organic inhibitor acts as a strong inhibitor for metal in acid19-28. Thiazole and triazole-type compounds containing N and S heteroatom. Heterocyclic compound on the corrosion inhibition of metal in acidic media have attracted more attention because of their excellent corrosion inhibition performance29-32. The researches by Desai and Indorwala showed that some Triazoles used as a Corrosion inhibitor for mild steel in Hydrochloric Acid and the inhibition effect was found very excellent. However, Wang et al. also investigated the effect of some mercaptotriazole derivatives synthesized containing different hetero atoms and substituents in the organic structures on the corrosion and hydrogen permeation of mild steel in HCl solution and their results revealed that all the mercaptotriazole derivatives performed excellently as corrosion inhibitors. Especially, some N-and S- containing triazole derivatives are environmentally friendly corrosion inhibitors compared with some commercial acid corrosion inhibitors, which are highly toxic, such as chromate and nitrite33-34. Therefore, In this work, the inhibition ability of PBIT [3-(piperazin-1-yl) benzo (d) isothiazole] and HOBT (hydroxyl benzotriazole) for mild steel corrosion in HCl solution at various temperatures was evaluated by the gravimetric method. The inhibitory mechanism of these organic compounds was discussed based on the analysis of the adsorption isotherm. NH 3-(piperazin-1-yl)benzo[]isothiazoleOH Hydroxy benzotriazole Material and Methods Mild steel contains Fe = 99.746; Mn = 0.100; C = 0.058; Al = Research Journal of Chemical Sciences ___________________________________________________________ ISSN 2231-606XVol. 5(3), 30-36, March (2015) Res. J. Chem. Sci. International Science Congress Association 31 0.033; Si = 0.010; Cr = 0.008; Cu = 0.004; Ni = 0.0029; Mo = 0.002% were used in this study. Each sheet, which was 0.12 cm in thickness, was mechanically press-cut into coupons of dimension 3.5 x 3 cm with small hole of about 5 mm diameter near the upper edge. These coupons were used in the as cut condition, inhibition efficiency without further polishing, but were de-greased in absolute ethanol, dried in acetone, weighed and stored in a moisture-free desiccator prior to use. All chemicals and reagents used were of analytical grade and used as source without further purification. The aggressive media were, respectively, 1, 2 and 3M HCl solution. Triazoles were used as inhibitors in the concentration range 5, 10, 15, 20 and 25 mM. The test specimens were immersed in 1.0, 2.0 and 3.0 M HCl solution with without inhibitors. Only one specimen was suspended by a glass hook, in each beaker containing 230 ml of the test solution and was open to air at room temperature for 24 h. After the immersion period, the surface of specimen was cleaned by double distilled water followed by rinsing with acetone and sample was weighed again in order to calculate inhibition efficiency ( %). Triplicate experiments were performed in each case and the calculated mean values of the weight loss data and inhibition efficiency and which was shown in figure-1 (a and b). To study the effect of temperature on corrosion rate, the specimen were immersed in 230 ml of 1.0 M HCl solution with various triazoles as inhibitor having concentration 5, 10, 15, 20 and 25 mM at solution temperatures of 313, 323 and 333 K for a period of 3h. To study the effect of temperature, thermostat assembly with accuracy of + 0.5C was used. From the weight loss data calculated the inhibition efficiency (I.E. %), energy of activation (E), heat of adsorption (Qads), free energy of adsorption (ads), enthalpy of adsorption (ads) and entropy of adsorption (ads). Results and Discussion The results are presented in table-1 and figures-1 to 6. To assess the effect of corrosion of mild steel in HCl, PBIT and HOBT were used as inhibitors. The corrosion rate of mild steel in HCl was increased with the acid concentration which was shown in figure-1, 2. The inhibition efficiency ( %) and degree of surface coverage () at each concentration of PBIT and HOBT was calculated by comparing the corrosion loss in the absence (W) and presence of inhibitors (W) using the relationships: %100 WuWiWi (1) WuWi Wi  =   (2) As a constant inhibitor concentration, the inhibition efficiency decreased with the increase in acid concentration. At 25 mM inhibitor concentration, the inhibition efficiency of PBIT [3-(piperazin-1-yl)benzo(d)isothiazole] was 66.01, 52.15 and 41.59 with respect to 1.0, 2.0 and 3.0 M acid concentrations respectively. At a constant acid concentration, the inhibition efficiency of the triazole increased with the inhibitor concentration, e.g. with HOBT in 1.0 M HCl the inhibition efficiency was found to be 43.79, 51.63, 59.48, 66.01 and 76.47 with respect to 5, 10, 15, 20 and 25 mM inhibitor concentrations respectively (figure 1-a, 1-b,). Figure-1(a) Effect of inhibition efficiency of Thiazole for mild steel at different acid and inhibitor concentrations for 24 h at 301 K Figure-1(b) Effect of inhibition efficiency of Triazoles for mild steel at different acid and inhibitor concentrations for 24 h at 301 K The temperature had significant influence on the metal corrosion rates. The effect of change in temperature on the corrosion rates of mild steel in 1.0 M HCl was examined. It was found that, the corrosion of mild steel increased with the increase in temperatures (table-2). Corrosion rate was measured in 1.0 M HCl containing 5, 10, 15, 20 and 25mM inhibitor Research Journal of Chemical Sciences ___________________________________________________________ ISSN 2231-606XVol. 5(3), 30-36, March (2015) Res. J. Chem. Sci. International Science Congress Association 32 concentration at a solution temperature of 313, 323 and 333 K for an immersion period of 3 h. In 1.0 M HCl solution with 25 mM Hydroxy benzotriazole concentration, the inhibition efficiency was found to be 76.92, 75.00 and 74.53 at 313, 323 and 333 K respectively (figure-2a, 2b). Figure-2 (a) Effect of inhibition concentration of PBIT for mild steel in 1M HCl at different temperatures for 3h &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 9{+HqYG 8$IIH?bM65@6Aјec7oEyꕸ8Rh $Iu*w@V] ;==_`K4`8I VGZT@͔ EI Q q 2056 0 0 4 431.996 3300 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP 9{+HqYG 8$IIH?bM65@6Aјec7oEyꕸ8Rh $Iu*w@V] ;==_`K4`8I VGZT@͔ EI Q q 2056 0 0 4 431.996 3300 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\ 9{+HqYG 8$IIH?bM65@6Aјec7oEyꕸ8Rh $Iu*w@V] ;==_`K4`8I VGZT@͔ EI Q q 2056 0 0 4 431.996 3300 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\&#x|PN;&#xN";&#xG ;&#x ;&#xSU; ;&#xR;&#x@?j;&#xo;&#x%;&#x$;&#xk;&#xWd#;&#x%;�gO;&#x~.; &#x[P;&#x;&#xp 0;&#x|PN;&#xN";&#xG ;&#x ;&#xSU; ;&#xR;&#x@?j;&#xo;&#x%;&#x$;&#xk;&#xWd#;&#x%;�gO;&#x~.; &#x[P;&#x;&#xp 0;&#x|PN;&#xN";&#xG ;&#x ;&#xSU; ;&#xR;&#x@?j;&#xo;&#x%;&#x$;&#xk;&#xWd#;&#x%;�gO;&#x~.; 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ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;IrC [kI2A@P#q EI Q q 2056 0 0 4 431.996 3008 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x==;&#x;&#x?n;&#x;&#xӧO;&#x#;&#x;,;&#xS;&#x;&#x ;&#xm ;&#x$C;�IrC [kI2A@P#q EI Q q 2056 0 0 4 431.996 3008 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;2t=]I*dX%ؒ ]#=N R*X EI Q q 2056 0 0 4 431.996 2988 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP2t=]I*dX%ؒ ]#=N R*X EI Q q 2056 0 0 4 431.996 2988 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP2t=]I*dX%ؒ ]#=N R*X EI Q q 2056 0 0 4 431.996 2988 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;2t=]I*dX%ؒ ]#=N R*X EI Q q 2056 0 0 4 431.996 2988 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;2t=]I*dX%ؒ ]C4.&C:Hbo EI Q q 2056 0 0 4 431.996 2968 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;2t=]I*dX%ؒ ]C4.&C:Hb ! EI Q q 2056 0 0 4 431.996 2948 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;@ T8Lp0ЏT-yȰJORP!â-d1u1 DB#oJ" EI Q q 2056 0 0 4 431.996 2932 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;q G.p0ЏT-yȰJORP!â-d1u1 DB#" EI Q q 2056 0 0 4 431.996 2916 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DPq G.p0ЏT-yȰJORP!â-d1u1 DB#" EI Q q 2056 0 0 4 431.996 2916 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;q G.p0ЏT-yȰJORP!â-d1u1 DB#" EI Q q 2056 0 0 4 431.996 2916 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;d"#TG? RDz EI Q q 2056 0 0 4 431.996 2904 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;d"#TG? RDz EI Q q 2056 0 0 4 431.996 2904 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;2t dP R@cb2t &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;2t dP R@cb2t &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; EI Q q 2056 0 0 4 431.996 2816 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; EI Q q 2056 0 0 4 431.996 2816 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;R-Hb& EI Q q 2056 0 0 4 431.996 2796 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;R-Hb& EI Q q 2056 0 0 4 431.996 2796 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;R-Hb& EI Q q 2056 0 0 4 431.996 2796 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DPR-Hb& EI Q q 2056 0 0 4 431.996 2796 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;R-Hb& EI Q q 2056 0 0 4 431.996 2796 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DPR-Hb& EI Q q 2056 0 0 4 431.996 2796 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;R-Hb& EI Q q 2056 0 0 4 431.996 2796 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;R-Hb& EI Q q 2056 0 0 4 431.996 2796 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;R-Hb& EI Q q 2056 0 0 4 431.996 2796 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; EI Q q 2056 0 0 4 431.996 2756 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; EI Q q 2056 0 0 4 431.996 2756 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; EI Q q 2056 0 0 4 431.996 2756 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; EI Q q 2056 0 0 4 431.996 2756 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; EI Q q 2056 0 0 4 431.996 2756 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; EI Q q 2056 0 0 4 431.996 2756 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; ,RSSLLѣٳgdddjjjj$V5dv".i@&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; ,RSSLLѣٳgdddjjjj$V5dv".i@&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; ,RSSLLѣٳgdddjjjj$V5dv".i@\\&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; ,RSSLLѣٳgdddjjjj$V5dv".i@\\\&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\I EI Q q 2056 0 0 4 431.996 2696 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP\&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U  3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U  3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U  3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U  3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U  3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U  3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U  3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U  3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U  3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U  3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U  3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U  3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U  3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U  3qMH5R!U  3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U  3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U  3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U  3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U  3qMH5R!U &#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U ŭ&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U ŭ&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U ŭ&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U ŭ&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U ŭ&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U ŭ 3qMH5R!U ŭ&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U ŭ 3qMH5R!U ŭ&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U ŭ 3qMH5R!U ŭ&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U ŭ 3qMH5R!U ŭ&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U ŭ 3qMH5R!U ŭ&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U ŭ&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U ŭ 3qMH5R!U ŭ&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U ŭ 3qMH5R!U ŭ&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U ŭ 3qMH5R!U ŭ&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U ŭ&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; 3qMH5R!U ŭ&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; EI Q q 2056 0 0 4 431.996 2328 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; EI Q q 2056 0 0 4 431.996 2324 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; EI Q q 2056 0 0 4 431.996 2324 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; EI Q q 2056 0 0 4 431.996 2316 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; EI Q q 2056 0 0 4 431.996 2316 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; EI Q q 2056 0 0 4 431.996 2316 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; EI Q q 2056 0 0 4 431.996 2316 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; EI Q q 2056 0 0 4 431.996 2316 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; EI Q q 2056 0 0 4 431.996 2316 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;}_CI}_CI&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;}_CI}_CI&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;`L$j EI Q q 2056 0 0 4 431.996 2212 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;`L$j EI Q q 2056 0 0 4 431.996 2212 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP`L$j EI Q q 2056 0 0 4 431.996 2212 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; ޽{@+"##/_HIl.~$I`j / U`hn޼M͛70eP ޽{@+"##/_HIl.~$I`j / U`hn޼M͛70eP ޽{@+"##/_HIl.~$I`j / U`hn޼M͛70eP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; ޽{@+"##/_HIl.~$I`j / U`hn޼M͛70eP*b fĄ*vvv=={6P%##cXe+A d P/k&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;*b fĄ*vvv=={6P%##cXe+A d P/k*b fĄ*vvv=={6P%##cXe+A d P/k&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x~;&#x;&#xǏ;&#x;&#xO];&#xG;&#x',;&#x--o;&#x;&#xU0;&#x$1;�&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;dC^zxX111J]?XPEȘ}:FP%&Hjlj$V 0H_X EI Q q 2056 0 0 4 431.996 2152 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;dC^zxX111J]?XPEȘ}:FP%&Hjlj$V 0H_X EI Q q 2056 0 0 4 431.996 2152 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;P}ѱc"""H2PA'5vFA“ai{{;Pa EI Q q 2056 0 0 4 431.996 2128 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;CS OA O {hi{{;=2X EI Q q 2056 0 0 4 431.996 2120 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;l$ EI Q q 2056 0 0 4 431.996 2104 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;l$ EI Q q 2056 0 0 4 431.996 2104 cm BI /CS/RGB /W 514 /H 1 /BPC 8 /F/Fl /DP&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; 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/; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3;&#x/Pre; ict;&#xor 1; /C;&#xolum;&#xns 5; /; olo;&#xrs 3; Figure -2 (b) Effect of inhibition concentration of HOBT for mild steel in 1M HC lat different temperatures for 3h In the present study general type of corrosion occurs predominately and less pitting. Plotting of log /1- versus log C (%), straight lines were obtained, indicating that the adsorption of the added inhibitors followed the Langmuir adsorption isotherm (figure-3a, 3b). Therefore, adsorption of these compounds is assumed to occur uniformly over the metal surface. Figure-3(a) Plot of log ( /1- ) versus log C for PBIT at different concentrations of HCl for 24 h at 301 K Figure-3(b) Plot of log ( /1- ) versus log C for HOBT at different concentrations of HCl for 24 h at 301 K Figure-4(a) Plot of versus log C for PBIT at different concentrations of HCl for 3h Research Journal of Chemical Sciences ___________________________________________________________ ISSN 2231-606XVol. 5(3), 30-36, March (2015) Res. J. Chem. Sci. International Science Congress Association 33 Figure-4(b) Plot of versus log C for HOBT at different concentrations of HCl for 3h Figure-5(a) Plot of log versus log C for PBIT at different concentrations of HCl for 3hPlot a graph versus log C gives straight line (figure-4 a and b) showing that the adsorption of the compound on the mild steel surface from 1 M HCl obeys also Temkins adsorption isotherm and also obey Freundlich adsorption isotherm.(figure-5 a and b) It is also found that the degree of adsorption of the inhibitors increases with their concentration. The values of the free energy of adsorption (ads) were calculated with the slope of the following equation35. og LogCLLogB =- (3) Where: 1.742.303adsLogB RT  =--   and C is the inhibitor concentration. The mean values are negative almost in all cases and lie in the range of -5.14 to -6.77 kJ. mol-1 shown in table-1. The most efficient inhibitor shows more negative value. This suggests that they be strongly adsorbed on the metal surface36. The values of heat of adsorption (Qads) were calculated by the following equation. 21122121 2.30311adsTTQRLogLogX TT qqqq   =- \n \n  ---  (4) From table -1, it is evident that in all cases, the (Qads) values are negative and ranging from 1.32 to -96.65 kJ. mol-1. The negative values show that the adsorption, and hence the inhibition efficiency, decreases with a rise in temperature37. Figure-5(b) Plot of log versus log C for HOBT at different concentrations of HCl for 3h Figure-6(a) Arrhenius plots for corrosion of mild steel in 1 M HCl in absence and presence of Triazoles Research Journal of Chemical Sciences ___________________________________________________________ ISSN 2231-606XVol. 5(3), 30-36, March (2015) Res. J. Chem. Sci. International Science Congress Association 34 Figure-6(b) Arrhenius plots for corrosion of mild steel in 1 M HCl in absence and presence of TriazolesMean 'E' value was calculated by using equation (5) for mild steel in 1M HCl is 72.79 kJ.mol-1 while in acid containing inhibitor, the mean E values are found to be higher than that of an uninhibited system (table-1). Higher values of in the presence of the triazoles which acts as inhibitor is a good indication of strong inhibiting action of the triazoles by increasing the energy barrier for the corrosion process. Higher values of a in the presence of extract can also be correlated with the increase in thickness of the double layer that enhances the a of the corrosion process38. The values of Ecalculated from the slope of an Arrhenius plot (figure-6a,6b) and using equation (5) are almost similar. Energy of activation (E) has been calculated from the slopes of log p versus 1/T (p = corrosion rate, T = absolute temperature) and also with the help of Arrhenius equation. 112 11 og2.303PEaPRTT   =- \n   (5) Where p1 and p2 are the corrosion rate at temperature T1 and Trespectively. The enthalpy of adsorption (ads) and entropy of adsorption ads) were calculated using the following equation-6 and 7. HadsEaRT D=- (6) 00 adsads adsHG T D-DD= (7) The enthalpy changes () are positive, indicating the endothermic nature of the reaction suggesting that higher temperature favors the corrosion process39. The entropy () values are positive, confirming that the corrosion process is entropically favorable40. The inhibitory mechanism is a separation process involving i. the inhibitor is adsorbed on the surface of the metal forming a compact protective thin layer and ii. the inhibitor forms a precipitate on the surface of the metal, acting on the aggressive media to form protective precipitates or remove the aggressive agents41. Adsorption, on the other important notes can be described by two main types of interaction, which are physisorption and chemisorptions42. Most 0rganic inhibitors are compounds with at least one polar unit, having atoms of nitrogen, oxygen, sulfur and in some cases, selenium and phosphorus. Amine type inhibitors have electron-donating ability and their action is attributed to the adsorption of the inhibitor molecules on the metal surface through an unshared pair of electrons belonging to the nitrogen atom43. The same is applicable to sulphur and oxygen atoms. It seems reasonable to suppose that the presence of two polar groups ensure better attachment than single one, but this view is not universally observed. In any case, it might be asked whether two nitrogen groups would not be as sufficient as one nitrogen and one sulfur group; perhaps the answer that the two different elements serve to provide attachment at different sites, that they attach themselves to the surface probably by the nitrogen or sulfur atom, is generally accepted. Table-1 Energy of activation (E), heat of adsorption (Qads) and free energy of adsorption (DDads) for mild steel in 1.0 M HCl Containing inhibitorsSystem Mean Ea from Eq.(2) (kJ. mol-1) Ea from Arrhenius plot (kJ. mol-1) ads (kJ. mol - 1 ) Mean value (kJ. mol - 1 ) 313-323 (K) 323-333 (K) adsadsads Blank 72.79 70.38 - - - - - 3-(piperazin-1-yl) benzo(d)isothiazole 80.81 77.81 1.32 -22.03 -5.56 78.17 0.2643 Hydroxy benzotriazole 76.99 74.52 -8.86 -2.24 -5.14 74.35 0.2510 Research Journal of Chemical Sciences ___________________________________________________________ ISSN 2231-606XVol. 5(3), 30-36, March (2015) Res. J. Chem. Sci. International Science Congress Association 35 Conclusion As a constant inhibitor concentration, the inhibition efficiency of all inhibitors decreases as the concentration of acid increases. At all concentration of acid, as the inhibitor concentration increases inhibition efficiency increases and corrosion rate decreases. As the temperature increases corrosion rate increases in plain acid. Addition of inhibitors in corrosive media indicates that as the temperature increases corrosion rate increases while inhibition efficiency decreases. Acknowledgement The authors are thankful to Department of Chemistry, and Department of Chemistry, Arts, Science and Commerce College, Kamrej Char Rasta, Surat for providing laboratory facilities. References 1.Schweitzer P, Fundamentals of Metallic Corrosion, Atmospheric and media corrosion of metals, corrosion engineering Handbook, 2nd(Ed.), CRC Press, Taylor and Francis Group, LLC, Florida, USA, (2007)2.Fouad E E. and El-Sherbini., Effect of some ethoxylated fatty acids on the corrosion behavior of mild steel in sulphuric acid solution, Mater. Chem. Phys.,50(2),436-448 (1999)3.Bartos M. and Hackerman N., A Study of Inhibition Action of Propargyl Alcohol during Anodic Dissolution of Iron in Hydrochloric Acid, J. Electrochem. Soc., 139, 3429-3433 (1992)4.Zucchi F., Trabanelli G. and Brunoro G., The influence of the chromium content on the inhibitive efficiency of some organic compounds, Corros. Sci., 33, 1135-1139 (1992)5.Elachouri M., Hajji M S., Kertit S., Essassi E M., Salem M. and Coudert R., Some surfactants in the series of 2-(alkyldimethylammonio) alkanol bromides as inhibitors of the corrosion of iron in acid chloride solution, Corros. Sci., 37, 381-389 (1995)6.Mernari B., Elattari H., Traisnel M., Bentiss F. and Larene M., Inhibiting effects of 3,5-bis(n-pyridyl)-4-amino-1,2,4-triazoles on the corrosion for mild steel in 1 M HCl medium, Corros. Sci., 40, 391-399 (1998) 7.Bentiss F., Traisnel M., Chaibi N., Mernari B., Vezin H. and Lagrene M., 2,5-Bis(n-methoxyphenyl)-1,3,4-oxadiazoles used as corrosion inhibitors in acidic media: correlation between inhibition efficiency and chemical structure, Corros. Sci., 44, 2271-2289 (2002a)8.Elkadi L., Mernari B., Traisnel M., Bentiss F. and Lagrene M., The inhibition action of 3,6-bis(2-methoxyphenyl)-1,2-dihydro-1,2,4,5- tetrazine on the corrosion of mild steel in acidic media, Corros.Sci., 42,703-719 (2000)9.Sharma Pratibha., Soni Alpana., Baroliya P.K., Dashora Rekha and Goswami A.K., Inhibitive action of 3-Hydroxy-3-(4methylphenyl-1-(4-sulphonato (sodium salt) phenyl triazene on Corrosion of Copper in HCl medium , Res. J. chem. sci.,5(2), 59-63 (2015) 10.Kertit S. and Hammouti B., Corrosion inhibition of iron in 1M HCl by 1- phenyl-5-mercapto-1, 2, 3, 4-tetrazole, Appl. Surf. Sci., 93, 59-66 (1996)11.El Azhar M., Mernari B., Traisnel M, Bentiss F. and Lagrene M., Corrosion inhibition of mild steel by the new class of inhibitors [2,5- bis(n-pyridyl)-1,3,4-thiadiazoles] in acidic media, Corros. Sci., 43, 2229-2238 (2001)12.Tang LB., Mu GN. and Liu GH., The effect of neutral red on the corrosion inhibition of cold rolled steel in 1.0 M hydrochloric acid, Corros. Sci., 45, 2251-2262 (2003)13.Zhang DQ., Gao LX. and Zhou GD., Synergistic effect of 2-mercapto benzimidazole and KI on copper corrosion inhibition in aerated sulfuric acid solution, J. Appl. Electrochem., 33, 361-366 (2003)14.Tadros AB. and Abdenaby BA., Inhibition of the acid corrosion of steel by 4- amino-3-hydrazino-5-thio-1,2,4-triazoles, J. Electroanal. Chem., 246, 433-439 (1988)15.Chin R J. and Nobe K., Electrochemical Characteristics of Iron in HSO Containing Benzotriazole, J.Electrochem. Soc., 118, 545-548 (1971)16.Nirmala Baby., Manjula P. and Manimegalai S., Azole Drug : A Novel Inhibitor for Corrosion, Res. J. chem. sci.,5(2), 11-16 (2015)17.Eldakar N. and Nobe K., Effect of Tolyltriazole on Iron Corrosion and the Hydrogen Evolution Reaction in SO, Corrosion., 32, 238-241 (1976) 18.Bentiss F., Traisnel M., Gengembre L. and Lagrenee M., Inhibition of acidic corrosion of mild steel by 3,5diphenyl-4H-1,2,4-triazole, Appl. Surface Sci., 161, 194-202 (2000a) 19.Desai P S. and Indorwala NS., Triazoles used as a Corrosion inhibitor for mild steel in Hydrochloric Acid, Int. J. Curr. Microbiol. App. Sci., 4(2), 928-938 (2015)20.Desai P S., Azadirachita indica (Neem) leaf extract used as corrosion inhibitors for mild steel in hydrochloric acid. 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