Extraction of chromium(III) from sodium chloride solutions by means of carboxylic acids |
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| Authors: | Wiesław Apostoluk Adam Bartecki |
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| Affiliation: | Institute of Inorganic Chemistry and Metallurgy of Rare Elements, Technical University of Wroc?aw, Wybrze?e Wyspiańskiego 27, 50-370 Wroc?aw Poland |
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| Abstract: | Studies of Cr(III) extraction with carboxylic acids showed that the extraction process takes place at a pH of the aqueous phase ranging from 4 to 5. It was shown that sodium chloride is active with respect to chromium(III) as a salting-out agent. For extraction of Cr(III) with hexanoic acid it was shown that in the organic phase trinuclear complexes of the [Cr(OH)R2·HR]3 formula are formed. |
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