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8252442 
Journal Article 
The Extraction of Zinc(II) from Chloride Solutions by Methyltrioctylammonium and Methyltridecylammonium Chlorides Dissolved in Chloroform and Other Diluents and a Comparison with Aliquat 336 
Daud, H; Cattrall, RW 
1982 
Yes 
Australian Journal of Chemistry
ISSN: 0004-9425
EISSN: 1445-0038 
35 
6 
1087-1093 
English 
Equilibrium constants for the extraction of zinc(II) from 1•0 and 6•0 M HC1 and from 6•0 M LiCl solutions by methyltrioctylammonium and methyltridecylammonium chlorides in chloroform are reported. Vapour phase osmometry studies show that methyltrioctylammonium and methyltridecylammo- nium chlorides form weak dimers in chloroform and isobutyl methyl ketone. The presence of water in the diluent decreases the extent of dimerization. The aggregation in o-xylene and cyclohexane is more extensive with larger aggregates being formed. The extraction of zinc(II) from 1 • 0 M HC1 by methyltridecylammonium chloride in different diluents follows the order isobutyl methyl ketone > cyclohexane > o-xylene > chloroform. At higher reagent concentrations the effect of aggregation is observed in reversing the order for cyclohexane and o-xylene. Anomalous extraction behaviour is observed with isobutyl methyl ketone which may be due to the extraction of a different species in this diluent. © 1982 ASEG.