Effect of conversion coatings and oxalate ion on corrosion of pure zinc in 1 M NaCl solution
Asian Journal of Chemistry, vol.24, no.1, pp.345-349, 2012 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 24 Issue: 1
- Publication Date: 2012
- Journal Name: Asian Journal of Chemistry
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.345-349
- Keywords: Corrosion, Surface coating, Zinc
- Ankara University Affiliated: Yes
Abstract
The corrosion of zinc coated with tungstate, molybdate and phosphate were investigated in the 1 M NaCl solution containing different sodium oxalate with concentrations of 1 × 10-2 - 1 × 10-5 M. The corrosion of zinc uncoated and covered with protective layer in Na 2WO4, Na2MoO4 and Na 2HPO4 were investigated in 1 M NaCl + xM Na 2C2O4 solutions by using potentiodynamic and impedance methods. The corrosion rates of zinc are especially low in the NaCl solution containing low oxalate concentrations.