The binary system K2SO4CaSO4
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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).
Suggested Citation
Rowe, J., Morey, G., and Hansen, I., 1965, The binary system K2SO4CaSO4: Journal of Inorganic and Nuclear Chemistry, v. 27, no. 1, p. 53-58, https://doi.org/10.1016/0022-1902(65)80189-0.
| 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 |