PITTING CORROSION OF NICKEL IN ALKALI SULFUR SOLUTIONS

Authors
JAYALAKSHMI M MURALIDHARAN VS
Citation
M. Jayalakshmi et Vs. Muralidharan, PITTING CORROSION OF NICKEL IN ALKALI SULFUR SOLUTIONS, Indian Journal of Technology, 31(8), 1993, pp. 606-609
Citations number
NO
Categorie Soggetti
Engineering
Journal title
Indian Journal of Technology → ACNP
ISSN journal
00195669
Volume
31
Issue
8
Year of publication
1993
Pages
606 - 609
Database
ISI
SICI code
0019-5669(1993)31:8<606:PCONIA>2.0.ZU;2-7
Abstract
Cyclic voltammetric studies on nickel in alkali sulphur solutions reve aled the formation of divalent hydroxide and sulphide of nickel. Sulph ides undergo oxidation to sulphur and sulphate on nickel surface. The formation of nickel sulphide and soluble nickel sulphur complexes were envisaged. The formation of higher valent oxides of nickel was inhibi ted by the presence of sulphur. The oxygen evolution reaction was favo ured on sulphate covered surface.