LOW-TOXICITY COPPER CORROSION-INHIBITORS

Citation
E. Stupniseklisac et al., LOW-TOXICITY COPPER CORROSION-INHIBITORS, Corrosion, 54(9), 1998, pp. 713-720
Citations number
45
Categorie Soggetti
Material Science","Metallurgy & Metallurigical Engineering
Journal title
ISSN journal
00109312
Volume
54
Issue
9
Year of publication
1998
Pages
713 - 720
Database
ISI
SICI code
0010-9312(1998)54:9<713:LCC>2.0.ZU;2-M
Abstract
The efficiency of various imidazole derivatives as corrosion inhibitor s for copper in hydrochloric and sulfuric acids (HCl and H2SO4) was in vestigated. Electrochemical measurements showed the organic compounds investigated have fairly good inhibiting properties, except for 4-meth yl-5-imidazole-carbaldehyde in HCl. Protecting properties of most imid azole derivatives were close to those of commercial inhibitors for cop per. Evaluation of the toxicity of the water solutions on the biologic al system for treatment of waste water - as measured in regard to chem ical oxygen demands (COD), aerobic, and anaerobic toxicity - showed th e tested inhibitors have relatively low toxicity.