| Identification | Back Directory | [Name]
STRONTIUM TELLURATE | [CAS]
15852-10-5 | [Synonyms]
STRONTIUM TELLURATE
Telluric acid strontium salt
strontium tellurium tetraoxide
Metatelluric acid strontium salt | [EINECS(EC#)]
239-972-8 | [Molecular Formula]
O4SrTe | [MDL Number]
MFCD00054064 | [MOL File]
15852-10-5.mol | [Molecular Weight]
279.22 |
| Hazard Information | Back Directory | [Description]
Strontium tellurate has the molecular formula of
SrTeO4 and the molecular weight of 279.216 grams per
mole. Its CAS number is 15852-10-5. It can be prepared
by the solid-state reaction of TeO3 and SrO:
SrO + TeO3+ heat ? SrTeO4
TeO3 melts at 430°C and a temperature of 600°C
serves to drive the reaction to completion. This is the
tetragonal meta-tellurate composition. It can also be formed in the same manner by solid-state reaction of
telluric acid:
SrO(solid) + H2TeO4(solid) ? SrTeO4(solid) +H2O(gas)
This is also tetragonal in structure, with the meta-tellurate
configuration. Of the two possible configurations,
the meta-tellurate is said to be the most stable.
Telluric acid is soluble in water and produces
Te(OH)4O2-
anions in solutions. If strontium chloride
is added, the product is a tetrahydrate:
SrCl2(aq) +H2Te(OH)4(aq)? SrTeO2(OH)4 |
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