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Sodium molybdate

Sodium molybdate, Na2MoO4, is useful as a source of molybdenum. It is often found as the dihydrate, Na2MoO4·2H2O.
The molybdate(VI) anion is tetrahedral. Two sodium cations coordinate with every one anion.

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Further Information

Names

IUPAC nameSodium molybdate

Other names

Disodium molybdate

Identifiers

CAS Number: 7631-95-0

JSmol: Interactive image

ChEBI: CHEBI:75215

ChemSpider: 55350

ECHA InfoCard: 100.028.683

EC Number: 231-551-7

PubChem: 61424

RTECS number: QA5075000

Properties

Chemical formula: NaMoO24

Molar mass: 205.92 g/mol (anhydrous)
241.95 g/mol (dihydrate)

Appearance: White powder

Density: 3.78 g/cm, solid

Melting point: 687 °C (1,269 °F; 960 K)

Solubility in water: 84 g/100 ml (100 °C)

Refractive index: 1.714

Hazards

Safety data sheet: External MSDS

NFPA 704:

Flash point: Non-flammable

median dose: 4000 mg/kg (rat, oral)

median concentration: >2080 mg/m (rat, 4 hr)3

Related compounds

anions: Sodium chromate

cations: Ammonium molybdate

Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).

Infobox references