Ammonium phosphomolybdate

Ammonium phosphomolybdate[1]
Names
Other names
Ammonium molybdophosphate
Identifiers
12026-66-3 YesY
3D model (Jmol) Interactive image
ChemSpider 21170136 YesY
ECHA InfoCard 100.031.545
Properties
(NH4)3PMo12O40
Molar mass 1876.35 g/mol
Appearance Yellow crystals
Melting point Decomposes
Hazards
Oxidizer (O), Corrosive (C)
R-phrases R36/37/38[2]
S-phrases S26, S36/37, S60[2]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
The phosphomolybdate ion, [PMo12O40]3−.

Ammonium phosphomolybdate is the inorganic salt of phosphomolybdic acid with the chemical formula (NH4)3PMo12O40. It contains the remarkable phosphomolybdate ion complex.

Synthesis

Ammonium phosphomolybdate can be made by heating ammonium orthomolybdate combined with phosphoric acid and nitric acid, yielding ammonium nitrate, water, and a yellow precipitate of ammonium phosphomolybdate is obtained.

12(NH4)2MoO4 + H3PO4 + 21 HNO3 → (NH4)3PMo12O40↓ + 21 NH4NO3 + 12 H2O

References

  1. ChemicalBook: http://www.chemicalbook.com/ChemicalProductProperty_EN_CB6162083.htm
  2. 1 2 "Archived copy". Archived from the original on 2011-07-07. Retrieved 2010-09-10. Alfa Aesar
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