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Citation: Zou Jinyun, Yang Baohe, Kuang Fugui, Jiang Jia. THE INHIBITION COEFFICIENT OF ADSORPTION INHIBITOR[J]. Chinese Journal of Applied Chemistry, ;1992, 9(3): 63-65. shu

THE INHIBITION COEFFICIENT OF ADSORPTION INHIBITOR

1.
Department of Environmental Science, Wuhan University, Wuhan 430072

Corresponding author: Zou Jinyun,
Received Date: 11 February 1991
Available Online: 1 August 1991

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:can be expressed as:logγ₃=α₃+β₃log C₁(concentration of the second inhibifor=constant) and logγ₃=logγ₁+blogγ₂(b=β₃/β₁). When b>1, the inhibitors showed a synergistic inhibition effect.
- corrosion cabon steel,
- inhibition,
- quinoline,
- thiourea,
- benzyltriphenyl phosphonium bromide
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