Phase Equilibria in the СaMoO4–СaSO4–СaF2–СaCl2 System

— Phase equilibria in the quaternary system СaMoO 4 –СaSO 4 –СaF 2 –СaCl 2 have been studied using physicochemical analysis (differential thermal analysis). We have determined the composition, melting point, and enthalpy of fusion of the quaternary peritectic point (melting point, 650°C; composition...

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Bibliographic Details
Published in:Inorganic materials 2023-05, Vol.59 (5), p.494-499
Main Authors: Dibirov, Ya. A., Iskanderov, E. G., Isakov, S. I.
Format: Article
Language:English
Subjects:
Calcium chloride
Calcium compounds
Calcium fluoride
Chemistry
Chemistry and Materials Science
Composition
Differential thermal analysis
Enthalpy
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
Melting points
Phase equilibria
Quaternary systems
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Summary:— Phase equilibria in the quaternary system СaMoO 4 –СaSO 4 –СaF 2 –СaCl 2 have been studied using physicochemical analysis (differential thermal analysis). We have determined the composition, melting point, and enthalpy of fusion of the quaternary peritectic point (melting point, 650°C; composition: 33.8% CaF 2 , 45% CaCl 2 , 16.2% CaSO 4 , and 5% CaMoO 4 ; enthalpy of fusion, 256 ± 5.1 kJ/kg) and quaternary eutectic point (melting point, 586°C; composition: 15.8% CaF 2 , 73.3% CaCl 2 , 9.9% CaSO 4 , and 1% CaMoO 4 ; enthalpy of fusion, 485 ± 9.7 kJ/kg) in the system studied.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168523050023