Low-toxicity copper corrosion inhibitors
- Univ. of Zagreb (Croatia). Faculty of Chemical Engineering and Technology
- PLIVA--Pharmaceutic Industry, Zagreb (Croatia). Lab. for Ecological Engineering
The efficiency of various imidazole derivatives as corrosion inhibitors for copper i hydrochloric and sulfuric acids (HCl and H{sub 2}SO{sub 4}) 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 demand (COD), aerobic, and anaerobic toxicity--showed the tested inhibitors have relatively low toxicity.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 669784
- Journal Information:
- Corrosion, Journal Name: Corrosion Journal Issue: 9 Vol. 54; ISSN 0010-9312; ISSN CORRAK
- Country of Publication:
- United States
- Language:
- English
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