On the Reactions Occurring in the CaOCr2O3O2 system

F. Solymosi, IréN Nagy

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The reactions occurring in the system CaOCr2O3O2 have been investigated. In the mixture of two oxides heated in air to higher temperature calcium chromate and chromite are being formed. The rate and the ratio of the two reactions is very sensitive to the composition of gaseous atmosphere, especially to the partial pressure of oxygen. The formation of spinel was accelerated by a small amount of oxygen but was partly or fully suppressed at a higher oxygen pressure on the expense of chromate formation. The oxidation of CaOCr2O3 was also studied kinetically. Detailed measurements in different gaseous atmospheres were performed with doped CaO and Cr2O3. The results were interpreted in the light of the defect structure of the reacting oxides.

Original languageEnglish
Pages (from-to)217-224
Number of pages8
JournalZAAC ‐ Journal of Inorganic and General Chemistry
Volume378
Issue number2
DOIs
Publication statusPublished - 1970

Fingerprint

Oxygen
Oxides
Chromates
Chromite
Defect structures
Partial pressure
Oxidation
Air
Chemical analysis
Temperature
spinell
calcium chromate(VI)

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

On the Reactions Occurring in the CaOCr2O3O2 system. / Solymosi, F.; Nagy, IréN.

In: ZAAC ‐ Journal of Inorganic and General Chemistry, Vol. 378, No. 2, 1970, p. 217-224.

Research output: Contribution to journalArticle

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