Ammonium phosphomolybdate

In this article we will explore the impact of Ammonium phosphomolybdate in different contexts and situations. Ammonium phosphomolybdate is a topic that has become increasingly relevant in recent years, and its influence ranges from the personal to the professional level. Throughout this analysis, we will examine the many facets of Ammonium phosphomolybdate and how these have shaped our understanding and experience in various aspects of life. From its impact on society to its implications in technology, through its relevance in art and culture, Ammonium phosphomolybdate has become a transversal topic that deserves to be carefully examined. Through this article, we aim to provide a complete and objective view of Ammonium phosphomolybdate and its importance in the contemporary world.

Ammonium phosphomolybdate^[1]

Names
Other names Ammonium molybdophosphate Triammonium 12-molybdophosphate
Identifiers
CAS Number	12026-66-3 N 54723-94-3 (hydrate)
3D model (JSmol)	Interactive image
ChemSpider	21241450 Y
ECHA InfoCard	100.031.545
EC Number	234-714-0
PubChem CID	90479084
UNII	F7YCY6MSAO
InChI InChI=1S/12Mo.3H3N.H3O4P.36O/c;;;;;;;;;;;;;;;1-5(2,3)4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/h;;;;;;;;;;;;3*1H3;(H3,1,2,3,4);;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; Y Key: RIAJLMJRHLGNMZ-UHFFFAOYSA-N Y
SMILES ...P(=O)().O=(=O)=O.O=(=O)=O.O=(=O)=O.O=(=O)=O.O=(=O)=O.O=(=O)=O.O=(=O)=O.O=(=O)=O.O=(=O)=O.O=(=O)=O.O=(=O)=O.O=(=O)=O
Properties
Chemical formula	(NH4)3PMo12O40
Molar mass	1876.35 g/mol
Appearance	Yellow crystals
Melting point	Decomposes
Hazards
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335[2]
Precautionary statements	P261, P305+P351+P338[2]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). N verify (what is YN ?) Infobox references

Chemical compound

Ammonium phosphomolybdate is the inorganic salt of phosphomolybdic acid with the chemical formula (NH₄)₃PMo₁₂O₄₀. The salt contains the phosphomolybdate anion, a well known heteropolymetalate of the Keggin structural class.

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.^[3]

12 (NH₄)₆Mo₇O₂₄(H₂O)₄ + 7 Na₂HPO₄(H₂O) + 65 HNO₃ → 7 (NH₄)₃Mo₁₂PO₄₀ + 51 NH₄NO₃ + 14 NaNO₃ + 91 H₂O

Normally, it often exists as a hexahydrate, a dark yellow fine crystal which is poorly soluble in water.^[3]

It is also obtained as a test result for phosphate ions.

References

1. ^ ChemicalBook: http://www.chemicalbook.com/ChemicalProductProperty_EN_CB6162083.htm
2. ^ ^{a b} "Ammonium phosphomolybdate hydrate".
3. ^ ^{a b} Dias, José Alves; Dias, Sílvia Cláudia Loureiro; Caliman, Ednéia (2014). "Keggin Structure Polyoxometalates". Inorganic Syntheses: Volume 36. Vol. 36. pp. 210–217. doi:10.1002/9781118744994.ch39. ISBN 9781118744994.