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431346

Ammonium molybdate tetrahydrate

Name: Ammonium molybdate tetrahydrate
Brand: SIGALD

ACS reagent, 99.98% trace metals basis

Synonym(s):

Ammonium heptamolybdate tetrahydrate, Molybdic acid ammonium salt tetrahydrate

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About This Item

Linear Formula:

(NH₄)₆Mo₇O₂₄ · 4H₂O

CAS Number:

12054-85-2

Molecular Weight:

1235.86

NACRES:

NA.55

PubChem Substance ID:

329756311

UNSPSC Code:

12161600

EC Number:

234-320-9

MDL number:

MFCD00167059

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Properties

grade

ACS reagent

Quality Level

200

agency

suitable for SM 5210

description

for inorganic trace analysis

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 (PO₄^3-): ≤5 ppm, sulfate (SO₄^2-): ≤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

Description

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.

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Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Global Trade Item Number

SKU	GTIN
431346-250G	04061832108223
431346-50G	04061832108230