ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Redox properties of the bis(2-hydroxyethyl)dithiocarbamate anion and its nickel(II) complex in aqueous-solutions

H. Hofbauerová, E. Beinrohr, and J. Mocák

Department of Analytical Chemistry, Slovak Technical University, CS-812 37 Bratislava

Abstract: The first step of the electrochemical oxidation of the bis(2-hydroxyethyl)dithiocarbamate anion (/) at a stationary carbon electrode is the formation of the appropriate thiuram disulfide. The voltammetric behaviour of/is considerably influenced by pH. The total oxidation of/by electrolytically generated hypobromite, involving 16 electrons per / molecule, was utilized in an optimized coulometric procedure for / determination. In electrochemical oxidation of the bis-Ni(II) complex in acidic solutions a complex with Ni(IV) central atom is formed. In neutral and alkaline solu- tions the corresponding thiuram disulfide is formed.

Full paper in Portable Document Format: 414a441.pdf

Chemical Papers 41 (4) 441–452 (1987)