magnesium selenate
- CAS NO.：14986-91-5
- Empirical Formula: MgO4Se
- Molecular Weight: 167.2626
- EINECS: 2390751
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-12-31 14:38:37
What is magnesium selenate?
Description
Magnesium selenate has the molecular formula of
MgSeO4 and the molecular weight of 167.2566 g/mol.
It can be prepared by reacting sodium selenate with
magnesium chloride in solution:
MgCl2(aq)+ Na2SeO4(aq) ? MgSeO4+ 2NaCl(aq)
It is soluble in water and the solution must be evaporated
to obtain crystals of the hexahydrate,
MgSeO4·6H2O. Its molecular weight is 275.3641 g/mol.
It is a white, monoclinic crystal with a density of
1.928 g/cm3. Its CAS number is 13446-58-1 and it is
soluble in water (55.52 g/100 ml at 60°C). The anhydrate
is stable upon heating to 1338°C the heat of formation,
△Hf°= —968.5 kJ/mol.
Chemical properties
monoclinic crystal(s) [MER06]
Properties of magnesium selenate
| Density | 1.928 [MER06] |
| Water Solubility | g/100g solution in H2O: 31.41 (0°C), 35.70 (25°C), 46.50 (99.5°C); solid phase, MgSeO4 ·7H2O (0°C), MgSeO4 · 6H2O (25°C), MgSeO4 ·4-1/2H2O (99.5°C) [KRU93] |
| EPA Substance Registry System | Selenic acid, magnesium salt (1:1) (14986-91-5) |
Safety information for magnesium selenate
Computed Descriptors for magnesium selenate
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