THE INHIBITION COEFFICIENT OF ADSORPTION INHIBITOR

Chinese Journal of Applied Chemistry ›› 1992, Vol. 0 ›› Issue (3): 63-65.

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THE INHIBITION COEFFICIENT OF ADSORPTION INHIBITOR

Zou Jinyun, Yang Baohe, Kuang Fugui, Jiang Jia

Department of Environmental Science, Wuhan University, Wuhan 430072

Received:1991-02-11 Revised:1991-08-01 Published:1992-06-10 Online:1992-06-10

Abstract

Abstract: The corrosion inhibition of quinoline, thiourea and benzyltriphenyl phosphonium bromide for carbon steel in acid medium have been investigated by weight loss method.The following relationship between inhibition coefficient γ_i (ratio of the corrosion velocity without inhibitor to that with inhibitor) and concentration of inhibitor (C_i) was found:logγ_i= α_i+β_ilogC_i In the case of mixed inhibitor systems the over all inhibition coeffiieient γ_s: can be expressed as:logγ_s= α_s+β_slogC₁ (concentration of the second inhibifor=constant) and logγ_s=logγ₁1+blogγ₂(b=β_s/β₁). When b>1, the inhibitors showed a synergistic inhibition effect.

Key words: corrosion cabon steel, inhibition, quinoline, thiourea, benzyltriphenyl phosphonium bromide

Zou Jinyun, Yang Baohe, Kuang Fugui, Jiang Jia. THE INHIBITION COEFFICIENT OF ADSORPTION INHIBITOR[J]. Chinese Journal of Applied Chemistry, 1992, 0(3): 63-65.

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THE INHIBITION COEFFICIENT OF ADSORPTION INHIBITOR

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