Anodic oxidation of formaldehyde on the copper surface in alkaline solutions of aminotris(hydroxymethyl)methane and EDTA

Authors
Shapnik, MS Petrova, TP Rakhmatullina, IF
Citation
Ms. Shapnik et al., Anodic oxidation of formaldehyde on the copper surface in alkaline solutions of aminotris(hydroxymethyl)methane and EDTA, PROT MET R, 35(3), 1999, pp. 253-257
Citations number
9
Categorie Soggetti
Metallurgy
Journal title
PROTECTION OF METALS
ISSN journal
00331732 → ACNP
Volume
35
Issue
3
Year of publication
1999
Pages
253 - 257
Database
ISI
SICI code
0033-1732(199905/06)35:3<253:AOOFOT>2.0.ZU;2-P
Abstract
It was established by cyclic voltammetry and electroreflection modulation s pectroscopy that the copper surface in strong alkaline media (pH 12.6) at p otentials of -0.4 to -0.5 V is covered with a copper(I) oxide film, which k eeps existing in the presence of formaldehyde. Aminotris(hydroxymethyl)meth ane (TRIS) makes the oxide film thinner and is directly involved in the ele mentary act of copper ionization to give complexes 1:1.