Determination of rhodium content by the method of Stripping voltammetry in ores and technogenic raw materials

N. A. Kolpakova, E. N. Dyachenko

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The method of determination of rhodium by the method of Stripping voltammetry in ores and technogenic raw materials has been developed. Determination of rhodium (III) in solution by Stripping voltammetry method was carried out by peak of selective electrooxidation of bismuth from intermetallic compound Bi2Rh. 1 M KSCN was selected as a background electrolyte. The method of melting of the sample with potassium tetrafluoroborate (KBrF4) at a temperature of 500 was used for the conversion of the rhodium solution.The method of deposition of most ions present in solution of alkali metals was used to separate ions of rhodium (III) from the matrix of the samples. Ions of Pt (IV), Rh (III) and Ir (IV) remain in solution after precipitation. Ions of iridium (IV) and 10-fold excess of platinum (IV) do not interfere with the determination of rhodium (III) against the background of 1 M KSCN.

Original languageEnglish
Article number01007
JournalMATEC Web of Conferences
Volume85
DOIs
Publication statusPublished - 17 Nov 2016

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Rhodium
Voltammetry
Ores
Raw materials
Ions
Alkali Metals
Iridium
Bismuth
Electrooxidation
Alkali metals
Platinum
Electrolytes
Intermetallics
Potassium
Melting
Temperature

ASJC Scopus subject areas

  • Chemistry(all)
  • Engineering(all)
  • Materials Science(all)

Cite this

Determination of rhodium content by the method of Stripping voltammetry in ores and technogenic raw materials. / Kolpakova, N. A.; Dyachenko, E. N.

In: MATEC Web of Conferences, Vol. 85, 01007, 17.11.2016.

Research output: Contribution to journalArticle

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