The binary system K2SO4CaSO4

Journal of Inorganic and Nuclear Chemistry
By: , and 



The binary system K2SO4CaSO4 was studied by means of heating-cooling curves, differential thermal analysis, high-temperature quenching technique and by means of a heating stage mounted on an X-ray diffractometer. Compositions and quench products were identified optically and by X-ray. Limited solid solution of CaSO4 in K2SO4 was found. There is a eutectic at 875°C and 34 wt. per cent CaSO4. Calcium langbeinite melts incongruently at 1011°C. The melting-point of CaSO4 (1462°C) was determined by the quenching technique using sealed platinum tubes. The only intermediate crystalline phase found in the system is K2SO4·2CaSO4 (calcium langbeinite).

Publication type Article
Publication Subtype Journal Article
Title The binary system K2SO4CaSO4
Series title Journal of Inorganic and Nuclear Chemistry
DOI 10.1016/0022-1902(65)80189-0
Volume 27
Issue 1
Year Published 1965
Language English
Publisher Elsevier
Description 6 p.
First page 53
Last page 58
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