THERMAL DEHYDRATION OF MAGNESIUM SELENATE HYDRATES

Authors
STOILOVA D KOLEVA V
Citation
D. Stoilova et V. Koleva, THERMAL DEHYDRATION OF MAGNESIUM SELENATE HYDRATES, Thermochimica acta, 255, 1995, pp. 33-38
Citations number
5
Categorie Soggetti
Chemistry Analytical
Journal title
Thermochimica acta → ACNP
ISSN journal
00406031
Volume
255
Year of publication
1995
Pages
33 - 38
Database
ISI
SICI code
0040-6031(1995)255:<33:TDOMSH>2.0.ZU;2-M
Abstract
The thermal dehydration of MgSeO4 . 6H(2)O, MgSeO4 . 4H(2)O and MgSeO4 . 2H(2)O has been studied by TG, DTA and DSC. The dehydrations occur in steps and the intermediate hydrates MgSeO4 . 5H(2)O, MgSeO4 . 4H(2) O, MgSeO4 . 2H(2)O and MgSeO4 . H2O are produced. The enthalpies of de hydration of the observed stages have been determined. The enthalpies of formation of MgSeO4 . 6H(2)O, MgSeO4 . 4H(2)O, MgSeO4 . 2H(2)O and MgSeO4 . H2O have been calculated from the DSC data.