INHIBITIVE EFFECT OF BUTYLTIN TRICHLORIDE ON DISSOLUTION AND LOCALIZED CORROSION OF ALUMINUM IN SODIUM-HYDROXIDE AND HYDROCHLORIC-ACID

被引:3
|
作者
MOURAD, MY [1 ]
IBRAHIM, EH [1 ]
SELIMAN, SA [1 ]
机构
[1] AL AZHAR UNIV,FAC SCI,CAIRO,EGYPT
关键词
Butyltin trichloride; corrosion; gasometric and thermometric measurements; inhibition of; localized corrosion;
D O I
10.1002/jccs.199000007
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The dissolution of aluminium in sodium hydroxide and hydrochloric acid in the presence of butyltin trichloride as corrosion inhibitor has been studied by hydrogen evolution and thermometric methods. Experimental findings indicate that the inhibition effect of butyltin trichloride takes place through an adsorption mechanism following the Frumkin's isotherm. Butyltin trichloride acts as a weakly adsorbed inhibitor in NaOH and as a strongly adsorbed inhibitor in hydrochloric acid medium. Copyright © 1990 The Chemical Society Located in Taipei & Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim, Germany
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页码:49 / 54
页数:6
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