strontium selenate
strontium selenate Basic information
- Product Name:
- strontium selenate
- Synonyms:
-
- strontium selenate
- Selenic acid strontium salt
- Strontium selenate(VI)
- CAS:
- 7446-21-1
- MF:
- O4SeSr
- MW:
- 230.5776
- EINECS:
- 231-202-9
- Mol File:
- 7446-21-1.mol
strontium selenate Chemical Properties
- Density
- 4.25
- solubility
- soluble in hot HCl
- form
- orthorhombic crystals
- color
- orthorhombic crystals, crystalline
- Water Solubility
- insoluble H2O; soluble HCl [MER06]
- Solubility Product Constant (Ksp)
- pKsp: 3.09
- EPA Substance Registry System
- Selenic acid, strontium salt (1:1) (7446-21-1)
strontium selenate Usage And Synthesis
Description
Strontium selanate has the molecular formula of
SrSeO4 and the molecular weight of 230.5798 g/mol. It
can be prepared by reacting sodium selenate with strontium
chloride in solution:
SrCl2(aq)+ Na2SeO4(aq) ? SrSeO4+ 2NaCl(aq)
The result is strontium selenate whose CAS number is
7446-21-1. It is slightly soluble in water at 0.656 g/100 ml
at 20°C. Evaporating the solution serves to form white,
orthorhombic crystals, with a density of 4.25 g/cm3. It is
less soluble in hot water at 0.1152 g/100 ml at 100°C and
soluble in hot HCl.
SrSeO4 is monoclinic with a space group of P21/n and
lattice parameters of: a= 6.853, b=7.352, c=7.102,
β=0.7107, V=348.0 ?3, Z= 4. The major use for this
compound has been to form SrSe by reduction:
SrSeO4(solid)+H2(gas)+ heat ? SrSe(solid)+H2O(gas)
Strontium selenate is available commercially from
several manufacturers.
Chemical Properties
orthorhombic crystal(s); prepared by heating strontium carbonate with selenium or selenium oxide [MER06]