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431346

Sigma-Aldrich

Ammonium molybdate tetrahydrate

ACS reagent, 99.98% trace metals basis

Synonyme(s) :

Ammonium heptamolybdate tetrahydrate, Molybdic acid ammonium salt tetrahydrate

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About This Item

Formule linéaire :
(NH4)6Mo7O24 · 4H2O
Numéro CAS:
12054-85-2
Poids moléculaire :
1235.86
Numéro CE :
234-320-9
Numéro MDL:
MFCD00167059
Code UNSPSC :
12161600
ID de substance PubChem :
329756311
Nomenclature NACRES :
NA.55

Qualité

ACS reagent
for inorganic trace analysis

Agence

suitable for SM 5210

Pureté

81.0-83.0% MoO3 basis
99.98% trace metals basis

Forme

powder

Pertinence de la réaction

reagent type: catalyst
core: molybdenum

Impuretés

≤0.005% insolubles

Densité

2.498 g/mL at 25 °C (lit.)

Traces d'anions

chloride (Cl-): ≤0.002%
nitrate (NO3-): passes test
phosphate (PO43-): ≤5 ppm
sulfate (SO42-): ≤0.02%

Traces de cations

Mg and allied cations: ≤0.01%
heavy metals: ≤0.001% (as lead)

Chaîne SMILES 

N.N.N.N.N.N.O.O.O.O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O[Mo](O)(=O)=O.O[Mo](O)(=O)=O.O[Mo](O)(=O)=O

InChI

1S/7Mo.6H3N.10H2O.18O/h;;;;;;;6*1H3;10*1H2;;;;;;;;;;;;;;;;;;/q;;;;3*+2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/p-6

Clé InChI

FIXLYHHVMHXSCP-UHFFFAOYSA-H

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Catégories apparentées

Description générale

Ammonium molybdate tetrahydrate (AMT) is a molybdenum salt. Study of its extraction from nickel-molybdenum (Ni–Mo) ore by direct hydrometallurgical method has been reported. Its degradation by combustion to form elemental molybdenum powder using metallic reducers has been investigated.

Application

Ammonium molybdate tetrahydrate may be used in the following processes:
  • As a precursor in the generation of calcium molybdate (CaMoO4) spherulites.
  • Synthesis of porous carbon-supported molybdenum dioxide (MoO2).
  • Preparation of Iodine-iodide-molybdate solution to determine glucose level by glucose oxidase method.
  • Preparation of polymer bulk heterojunction solar cells.
  • As a precursor in the synthesis of Mo-N-codoped TiO2 (titanium dioxide).
  • Synthesis of MoBi2S5 (molybdenum bismuth sulphide) thin films.
Applied in the ultrasonic synthesis of phase-pure praseodymium molybdate, Pr2Mo3O12.
Reagent used for oxidation of sulfides to sulfonyls.

Caractéristiques et avantages

Meets A.C.S. reagent specificatons.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

A facile and efficient strategy for the preparation of stable CaMoO4 spherulites using ammonium molybdate as a molybdenum source and their excitation induced tunable luminescent properties for optical applications.
Raju GSR, et al.
Journal of Materials Chemistry, 22(31), 15562-15569 (2012)
Direct reduction of ammonium molybdate to elemental molybdenum by combustion reaction.
Manukyan K, et al.
Chemical Engineering Journal, 168(2), 925-930 (2011)
Influence of vacuum annealing on the structural and photoelectrochemical properties of nanocrystalline MoBi2S5 thin films.
Pawar NB, et al.
Current Applied Physics, 14(3), 508-515 (2014)
In-situ preparation of porous carbon-supported molybdenum dioxide and its performance in the oxidative desulfurization of thiophene.
Zhuang L, et al.
J. Mater. Sci., 49(16), 5606-5616 (2014)
Organic photovoltaic devices incorporating a molybdenum oxide hole-extraction layer deposited by spray-coating from an ammonium molybdate tetrahydrate precursor.
Griffin J, et al.
Organic Electronics, 15(3), 692-700 (2014)
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