Notes on the Preparation and Analysis of Halogenide-Free Rhodium(III) Perchlorate (Sulfate) Solutions

Abstract

A method is described for the preparation of halogenide-free rhodium(III) perchlorate (sulfate) solutions. As starting material, rhodium chloride or rhodium bromide can be used. The halogenide was removed by means of ozone, which oxidizes "free" (not complex-bound) halogenide to halogen and Rh(III) to RH(V): O3 + 2X(-) + 2H(+) yields Rh(V) + O2 + H2O (1) X = Cl or Br; Rh(III) + O3 + 2H(+) yields Rh(V) + O2 + H2O (2). The Rh(V) produced, being a strong oxidizing agent, also reacts with the halogenide according to Rh(V) + 2X(-) yields Rh(III) + X2 (3). Methods for the detection of halogenide-ions in rhodium solutions are given.

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Document Details

Document Type
Technical Report
Publication Date
Feb 15, 1960
Accession Number
AD0245504

Entities

People

  • Clara Berecki-biedermann

Organizations

  • Stockholm University

Tags

DTIC Thesaurus Topics

  • Acids
  • Air Force
  • Chemical Reactions
  • Chemical Synthesis
  • Chemistry
  • Chlorides
  • Chlorine
  • Halogens
  • Hot Water
  • Hydroxides
  • Inorganic Chemistry
  • Materials
  • Metals
  • Oxidation
  • Perchlorates
  • Precipitates
  • Water

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  • Organic Chemistry
  • STEM Education