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THE EXTRACTION OF RHODIUM FROM AQUEOUS NITRIC ACID BY DINONYLNAPHTHALENE SULPHONIC ACID

1987; Taylor & Francis; Volume: 5; Issue: 4 Linguagem: Inglês

10.1080/07366298708918585

ISSN

1532-2262

Autores

Nilkumar Patel, John R. Thornback,

Tópico(s)

Analytical chemistry methods development

Resumo

ABSTRACT ABSTRACT The extraction of rhodium from aqueous nitric acid using dinonylnapthalene sulphonic acid has been investigated. The extraction occurs readily from 0.1M to 1.0m nitric acid and, since the rhodium is extracted as [Rh(H2O)6] 3+into the inverted micelles of the organic solution,equilibration times are less than 5 minutes. Extraction is enhanced by the addition of nitrite ion to form [Rh(H2O)5NO2] 2+as the extracted species. Additional informationNotes on contributorsN. M. PatelPresent address: Chemistry Division, AERE Harwell, Didcot, Oxon, England.J. R. ThornbackAuthor to whom correspondence should be addressed.

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