Showing papers on "Chromium(III) oxide published in 1983"

Effect of the partial pressures of oxygen and water vapour on the dispersity of α-Cr2O3 obtained by thermal decomposition of hydrated chromium(III) oxide

Abstract: The effect of water vapour and oxygen partial pressure on the thermal decomposition of hydrated chromium (III) oxide has been studied. A decrease in the water vapour partial pressure from 20 to 1 ×...

Thermal and X-ray diffraction investigations of the binary system chromium(III) oxide — barium perchlorate trihydrate

Abstract: Chromium(III) oxide reverses the sequence of dehydration of barium perchlorate trihydrate (BP). Between 223 and 310‡ the oxide reacts with anhydrous BP in a 1∶1 molar ratio to give the yellow barium dichromite BaCr2O4. Between 350 and 430‡ this material reacts in 1∶1 stoichiometry with BP, to give barium chromate BaCrO4. The products have been identified by X-ray diffraction analysis. The formation of an unkown phase is also reported.

Effect of the Partial Pressures of Oxygen and Water Vapour on the Dispersity of α-Cr2O3, Obtained by Thermal Decomposition of Hydrated Chromium(III) Oxide.

Abstract: The effect of water vapour and oxygen partial pressure on the thermal decomposition of hydrated chromium (III) oxide has been studied. A decrease in the water vapour partial pressure from 20 to 1 ×...

Precipitation and solid solubility in the system nickel(ii) oxide‐chromium(iii) oxide

Abstract: Im Titelsystem tritt homogene Ausscheidung von NiCr2O4 auf, dessen Keimbildung und Wachstum untersucht werden.