
%0 Journal Article
%A Paimin, R 
%A Cattrall, RW 
%T The Extraction of Cobalt(II) From Oxalate Solutions by Aliquat-336 Dissolved in Chloroform
%J Australian Journal of Chemistry
%D 1986/07/01
%V 39
%N 7
%P 987-995
%K 
%R https://doi.org/10.1071/CH9860987
%U https://www.publish.csiro.au/paper/CH9860987 
%X A study is reported of the extraction of cobalt(II) from oxalate solutions by Aliquat 336 in chloroform. Equilibrium studies by two-phase titration show that the predominant organic-phase complex has the formula [(R3MeN)2Co(C2O4)2]. It is proposed that this species is formed by extraction of the anionic complex Co(C2O4)22- involving interfacial reactions. There is evidence for the formation of a small amount of the complex [(R3MeN)4Co(C2O4)3]. The extraction mechanism proposed is based on a study with the single-drop technique, and is supported by interfacial tension measurements and measurements with a stirred cell of constant interfacial area. 
