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Merck

431346

Sigma-Aldrich

Ammonium molybdate tetrahydrate

ACS reagent, 99.98% trace metals basis

Sinónimos:

Ammonium heptamolybdate tetrahydrate, Molybdic acid ammonium salt tetrahydrate

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About This Item

Fórmula lineal:
(NH4)6Mo7O24 · 4H2O
Número de CAS:
Peso molecular:
1235.86
EC Number:
MDL number:
UNSPSC Code:
12161600
PubChem Substance ID:
NACRES:
NA.55

grade

ACS reagent
for inorganic trace analysis

Quality Level

agency

suitable for SM 5210

assay

81.0-83.0% MoO3 basis
99.98% trace metals basis

form

powder

reaction suitability

reagent type: catalyst
core: molybdenum

impurities

≤0.005% insolubles

density

2.498 g/mL at 25 °C (lit.)

anion traces

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

cation traces

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

SMILES string

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

InChI key

FIXLYHHVMHXSCP-UHFFFAOYSA-H

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General description

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.

Features and Benefits

Meets A.C.S. reagent specificatons.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificados de análisis (COA)

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Visite la Librería de documentos

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)
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)
A new and rapid method for the determination of glucose by measurement of rate of oxygen consumption.
Kadish AH, et al.
Clinical Chemistry, 14(2), 116-131 (1968)
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)

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