Ammonium phosphomolybdate

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Ammonium phosphomolybdate[1]
Ammonium molybdophosphate.JPG
Names
Other names
Ammonium molybdophosphate
Triammonium 12-molybdophosphate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.031.545
EC Number 234-714-0
UNII
Properties
(NH4)3PMo12O40
Molar mass 1876.35 g/mol
Appearance Yellow crystals
Melting point Decomposes
Hazards
GHS pictograms GHS07: Harmful
GHS signal word Warning
H315, H319, H335[2]
P261, P305+351+338[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 phosphomolybdate ion complex.

Synthesis[edit]

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[edit]

  1. ^ ChemicalBook: http://www.chemicalbook.com/ChemicalProductProperty_EN_CB6162083.htm
  2. ^ a b "Ammonium phosphomolybdate hydrate".