Low-toxicity copper corrosion inhibitors

被引：96

作者：

Stupnisek-Lisac, E ^{[1
]}

Bozic, AL

Cafuk, I

机构：

[1] Univ Zagreb, Fac Chem Engn & Technol, Zagreb 41000, Croatia

[2] PLIVA Pharmaceut Ind, Lab Ecol Engn, Zagreb, Croatia

来源：

CORROSION | 1998年 / 54卷 / 09期

关键词：

acid corrosion; benzotriazole; copper; heating and cooling; imidazole; inhibition; potentiostatic polarization; toxicity; waste water;

D O I：

10.5006/1.3284890

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The efficiency of various imidazole derivatives as corrosion inhibitors for copper in hydrochloric and sulfuric acids (HCl and H2SO4) was investigated. Electrochemical measurements showed the organic compounds investigated have fairly good inhibiting properties, except for 4-methyl-5-imidazole-carbaldehyde in HCl. Protecting properties of most imidazole derivatives were close to those of commercial inhibitors for copper. Evaluation of the toxicity of the water solutions on the biological system for treatment of waste water - as measured in regard to chemical oxygen demands (COD), aerobic, and anaerobic toxicity - showed the tested inhibitors have relatively low toxicity.

引用

页码：713 / 720

页数：8

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