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431346

Sigma-Aldrich

Ammonium molybdate tetrahydrate

ACS reagent, 99.98% trace metals basis

Sinonimo/i:

Ammonium heptamolybdate tetrahydrate, Molybdic acid ammonium salt tetrahydrate

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About This Item

Formula condensata:
(NH4)6Mo7O24 · 4H2O
Numero CAS:
12054-85-2
Peso molecolare:
1235.86
Numero CE:
234-320-9
Numero MDL:
MFCD00167059
Codice UNSPSC:
12352300
ID PubChem:
329756311
NACRES:
NA.55

Grado

ACS reagent
for inorganic trace analysis

Livello qualitativo

100

agenzia

suitable for SM 5210

Saggio

81.0-83.0% MoO3 basis
99.98% trace metals basis

Forma fisica

powder

Impiego in reazioni chimiche

reagent type: catalyst
core: molybdenum

Impurezze

≤0.005% insolubles

Densità

2.498 g/mL at 25 °C (lit.)

Anioni in tracce

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

Cationi in tracce

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

Stringa SMILE

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
FIXLYHHVMHXSCP-UHFFFAOYSA-H

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Categorie correlate

Descrizione generale

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.

Applicazioni

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.

Caratteristiche e vantaggi

Meets A.C.S. reagent specificatons.

Codice della classe di stoccaggio

13 - Non Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Certificati d'analisi (COA)

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In-situ preparation of porous carbon-supported molybdenum dioxide and its performance in the oxidative desulfurization of thiophene.
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