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Ammonium Phosphomolybdate Hydrate

CAS #:


Linear Formula:

(NH4)3PMo12O40 • xH2O

MDL Number:


EC No.:



(2N) 99% Ammonium Phosphomolybdate Hydrate
AM-PMOAT-02-C.XHYD Pricing > SDS > Data Sheet >
(3N) 99.9% Ammonium Phosphomolybdate Hydrate
AM-PMOAT-03-C.XHYD Pricing > SDS > Data Sheet >
(4N) 99.99% Ammonium Phosphomolybdate Hydrate
AM-PMOAT-04-C.XHYD Pricing > SDS > Data Sheet >
(5N) 99.999% Ammonium Phosphomolybdate Hydrate
AM-PMOAT-05-C.XHYD Pricing > SDS > Data Sheet >


Compound Formula


Molecular Weight



Yellow powder

Melting Point


Boiling Point




Exact Mass


Monoisotopic Mass




Health & Safety Info  |  MSDS / SDS

Signal Word Warning
Hazard Statements H315-H319-H335
Hazard Codes Xi
Risk Codes 36/37/38
Safety Statements 26
RTECS Number N/A
Transport Information N/A
WGK Germany 3


Ammonium Phosphomolybdate Hydrate is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.


triammonium 12-molybdophosphate hydrate, Ammonium-12-molybdophosphate, Molybdophosphoric acid ammonium salt, Phosphomolybdic acid ammonium salt hydrate, triammonium bis[[[[(oxido-dioxo-molybdenio)oxy-dioxo-molybdenio]oxy-dioxo-molybdenio]oxy-dioxo-molybdenio]oxy]phosphoryloxy-[[(oxido-dioxo-molybdenio)oxy-dioxo-molybdenio]oxy-dioxo-molybdenio]oxy-dioxo-molybdenum hydrate

Chemical Identifiers

Linear Formula

(NH4)3PMo12O40 • xH2O

Pubchem CID


MDL Number


EC No.





O.O=[Mo](=O)(OP(=O) (O[Mo](=O)(=O)O[Mo]( =O)(=O)O[Mo](=O)(=O )O[Mo]([O-])(=O)=O)O[ Mo](=O)(=O)O[Mo](=O )(=O)O[Mo](=O)(=O)O[ Mo]([O-])(=O)=O)O[Mo ](=O)(=O)O[Mo](=O)(= O)O[Mo]([O-])(=O)=O.[ NH4+].[NH4+].[NH4+]

InchI Identifier


InchI Key


Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Products & Element Information

See more Molybdenum products. Molybdenum (atomic symbol: Mo, atomic number: 42) is a Block D, Group 6, Period 5 element with an atomic weight of 95.96. Molybdenum Bohr ModelThe number of electrons in each of molybdenum's shells is [2, 8, 18, 13, 1] and its electron configuration is [Kr] 4d5 5s1. The molybdenum atom has a radius of 139 pm and a Van der Waals radius of 209 pm. In its elemental form, molybdenum has a gray metallic appearance. Molybdenum was discovered by Carl Wilhelm in 1778 and first isolated by Peter Jacob Hjelm in 1781. Molybdenum is the 54th most abundant element in the earth's crust. Elemental MolybdenumIt has the third highest melting point of any element, exceeded only by tungsten and tantalum. Molybdenum does not occur naturally as a free metal, it is found in various oxidation states in minerals. The primary commercial source of molybdenum is molybdenite, although it is also recovered as a byproduct of copper and tungsten mining. The origin of the name Molybdenum comes from the Greek word molubdos meaning lead.

Phosphorus Bohr ModelSee more Phosphorus products. Phosphorus (atomic symbol: P, atomic number: 15) is a Block P, Group 15, Period 3 element. The number of electrons in each of Phosphorus's shells is 2, 8, 5 and its electronic configuration is [Ne] 3s2 3p3. The phosphorus atom has a radius of 110.5.pm and its Van der Waals radius is 180.pm. Phosphorus is a highly-reactive non-metallic element (sometimes considered a metalloid) with two primary allotropes, white phosphorus and red phosphorus its black flaky appearance is similar to graphitic carbon. Compound forms of phosphorus include phosphates and phosphides. Phosphorous was first recognized as an element by Hennig Brand in 1669 its name (phosphorus mirabilis, or "bearer of light") was inspired from the brilliant glow emitted by its distillation.

Recent Research

Application of dahlia-like molybdenum disulfide nanosheets for solid phase extraction of Co(II) in vegetable and water samples., Aghagoli, Mohammad Javad, Beyki Mostafa Hossein, and Shemirani Farzaneh , Food Chem, 2017 May 15, Volume 223, p.8-15, (2017)

Au nanoparticles/hollow molybdenum disulfide microcubes based biosensor for microRNA-21 detection coupled with duplex-specific nuclease and enzyme signal amplification., Shuai, Hong-Lei, Huang Ke-Jing, Chen Ying-Xu, Fang Lin-Xia, and Jia Meng-Pei , Biosens Bioelectron, 2017 Mar 15, Volume 89, Issue Pt 2, p.989-997, (2017)

Determination of hexitols by reversed phase liquid chromatography using on-line complexation with molybdate ion., Kemmei, Tomoko, Kodama Shuji, Yamamoto Atsushi, Inoue Yoshinori, and Hayakawa Kazuichi , Anal Chim Acta, 2017 Mar 15, Volume 958, p.71-76, (2017)

Laser synthesis, structure and chemical properties of colloidal nickel-molybdenum nanoparticles for the substitution of noble metals in heterogeneous catalysis., Marzun, Galina, Levish Alexander, Mackert Viktor, Kallio Tanja, Barcikowski Stephan, and Wagener Philipp , J Colloid Interface Sci, 2017 Mar 01, Volume 489, p.57-67, (2017)

A sensitive aptasensor based on molybdenum carbide nanotubes and label-free aptamer for detection of bisphenol A., He, Meng-Qi, Wang Kun, Wang Jin, Yu Yong-Liang, and He Rong-Huan , Anal Bioanal Chem, 2017 Mar, Volume 409, Issue 7, p.1797-1803, (2017)

Enhancement of cavitation erosion resistance of 316 L stainless steel by adding molybdenum., Li, D G., Chen D R., and Liang P , Ultrason Sonochem, 2017 Mar, Volume 35, Issue Pt A, p.375-381, (2017)

Effects of tungsten on uptake, transport and subcellular distribution of molybdenum in oilseed rape at two different molybdenum levels., Qin, Shiyu, Sun Xuecheng, Hu Chengxiao, Tan Qiling, Zhao Xiaohu, and Xu Shoujun , Plant Sci, 2017 Mar, Volume 256, p.87-93, (2017)

Localization and pair breaking parameter in superconducting molybdenum nitride thin films., Tsuneoka, Takuya, Makise Kazumasa, Maeda Sho, Shinozaki Bunju, and Ichikawa Fusao , J Phys Condens Matter, 2017 Jan 11, Volume 29, Issue 1, p.015701, (2017)

Molybdenum-Doped PdPt@Pt Core-Shell Octahedra Supported by Ionic Block Copolymer-Functionalized Graphene as a Highly Active and Durable Oxygen Reduction Electrocatalyst., Cho, Kie Yong, Yeom Yong Sik, Seo Heun Young, Kumar Pradip, Lee Albert S., Baek Kyung-Youl, and Yoon Ho Gyu , ACS Appl Mater Interfaces, 2017 Jan 03, (2017)

Template Removal via Boudouard Equilibrium Allows for Synthesis of Mesostructured Molybdenum Compounds., Schieder, Martin, Bojer Carina, Stein Julia Vom, Koch Sebastian, Martin Thomas, Schmalz Holger, Breu Josef, and Lunkenbein Thomas , Angew Chem Int Ed Engl, 2017 Jan 03, (2017)


February 25, 2017
Los Angeles, CA
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