Ammonium Dimolybdate

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CAS NO.： 27546-07-2

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Product Detail

Properties

Ammonium Dimolybdate

Product name:		Ammonium dimolybdate
CAS no.:		27546-07-2
Molecular formula:		(NH4)₂Mo₂O₇
Molecular weight:		339.95
Structural formula:
Properties:		Common name: ADM, (NH4)₂Mo₂O₇. White powdery crystal, in visible inclusions. Easily soluble in water and alkali, insoluble in alcohol and acetone.

Properties

Ammonium dimolybdate (ADM) is the inorganic compound with the formula (NH4)2Mo2O7. It is a white, water-soluble solid. ADM is an intermediate in the production of molybdenum compounds from its ores. Roasting typical ore produces crude molybdenum(VI) oxides, which can be extracted into aqueous ammonia, affording ammonium molybdate. Heating solutions of ammonium molybdate gives ADM. Upon heating the solid, ammonium dimolybdate decomposes to molybdenum trioxide: (NH4)2Mo2O7 → 2 MoO3 + 2 NH3 + H2O In terms of its chemical structure, it is a polymeric consisting of distorted octahedral Mo centers liked by tetrahedral molybdate centers.

CAS No.

27546-07-2

Formula

H8Mo2N2O7

Molecular Mass

339.99300

Exact Mass

343.84400

PSA

124.45000

Logp

-0.24940