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The distribution coefficient of trivalent gold in methyl isobutyl ketone/hydrochloric acid and bis-(β-chloroethyl) ether/hydrochloric acid systems as a function of the concentration of hydrochloric acid and the concentration of gold.

J.J. Pinajian

Abstract

The bis-(p-chloroethyl) ether and the methyl isobutyl ketone extraction of gold(lll) chloride from hydrochloric acid solutions was studied as a function of the gold con centration and the hydrochloric acid concentration. Values of the KD are given for 0.0125 mM 100 mM Au(lll) chloride and 2 M 10 M HC1 [bis-(p-chloroethyl) ether] and 1 M 6 M HC1 [methyl isobutyl ketone]. The extraction of gold(lll) chloride from hydrochloric acid solutions by methyl isobutyl ketone was found to be from 25 to 250 times more efficient than by the use of bis-(p-chloroethyl) ether.

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Key concepts: Hydrochloric acid, Methyl isobutyl ketone, Chemistry, Ether, Ketone, Chloride, Nuclear chemistry, Extraction (chemistry)