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ChemicalBook--->CAS DataBase List--->7783-21-3

7783-21-3

7783-21-3 Structure

7783-21-3 Structure
IdentificationBack Directory
[Name]

AMMONIUM SELENATE
[CAS]

7783-21-3
[Synonyms]

AMMONIUM SELENATE
selenicacid,diammoniumsalt
[EINECS(EC#)]

231-985-7
[Molecular Formula]

H8N2O4Se
[MDL Number]

MFCD00015963
[MOL File]

7783-21-3.mol
[Molecular Weight]

179.03
Chemical PropertiesBack Directory
[Melting point ]

decomposed by heating [MER06]
[density ]

d420 2.194
[solubility ]

insoluble in ethanol, acetone
[form ]

white monoclinic crystals
[color ]

white monoclinic crystals, crystalline
[Water Solubility ]

g/100g solution H2O: 54.02 (25°C) [KRU93]; insoluble alcohol [HAW93]
[EPA Substance Registry System]

Selenic acid, diammonium salt (7783-21-3)
Hazard InformationBack Directory
[Chemical Properties]

Colorless crystals. Soluble in water, insoluble in alcohol.
[Uses]

Mothproofing agent.
[Purification Methods]

Crystallise the selenate from water at room temperature by adding EtOH and cooling. Its solubility in H2O is 117% at 7o and 197% at 100o. [King J Phys Chem 41 797 1937.]
Safety DataBack Directory
[RIDADR ]

2630
[HazardClass ]

6.1(a)
[PackingGroup ]

I
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