The binary system K2SO4CaSO4
Journal of Inorganic and Nuclear Chemistry
By: J.J. Rowe, G.W. Morey, and I.D. Hansen
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Abstract
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 |