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ChemicalBook--->CAS DataBase List--->10039-31-3

10039-31-3

10039-31-3 Structure

10039-31-3 Structure
IdentificationBack Directory
[Name]

Beryllium selenate tetrahydrate.
[CAS]

10039-31-3
[Synonyms]

Beryllium Selenate
Beryllium selenate tetrahydrate.
[Molecular Formula]

BeH6O5Se
[MOL File]

10039-31-3.mol
[Molecular Weight]

174.03
Chemical PropertiesBack Directory
[density ]

2.030
[solubility ]

very soluble in H2O
[form ]

orthorhombic crystals
[color ]

orthorhombic crystals, crystalline
[Water Solubility ]

very soluble H2O [MER06]
[CAS DataBase Reference]

10039-31-3
Hazard InformationBack Directory
[Chemical Properties]

colorless, ortho-rhomb crystal(s) [CRC10] [MER06]
[Description]

Beryllium selenate has the molecular formula of BeSeO4 and the molecular weight of 224.0354 g/mol. Its density is 2.03 g/cm3. If prepared in solution, the formula is likely to be (BeOH)2SeO4·4H2O. Nevertheless, the literature persists in relating the compound produced as BeSeO4. The addition of beryllium carbonate and sodium carbonate to a selenic acid solution is sufficient to form the tetrahydrate:
BeCO3(solid)+ Na2CO3(solid)+H2SeO4(aq) ? (BeOH)2SeO4·4H2O(solid)+ 2NaOH(aq) + CO2(gas)
It is soluble in water and the solution must be evaporated to obtain the crystalline salt. Beryllium selenate tetrahydrate has the CAS number of 10039-31-3 and a molecular weight of 267.0582 g/mol. Its density is 2.032 g/cm3 and it is very soluble in water (49.6 g/ 100 ml at 20 °C).
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