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A7302

Ammonium molybdate tetrahydrate

Name: Ammonium molybdate tetrahydrate
Brand: SIGALD

ACS reagent, 81.0-83.0% MoO₃ 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.21

PubChem Substance ID:

329770925

UNSPSC Code:

12352302

EC Number:

234-320-9

MDL number:

MFCD00167059

Assay:

81.0-83.0% MoO₃ basis

Grade:

ACS reagent

Form:

crystalline

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Properties

grade

ACS reagent

Quality Segment

300

agency

suitable for SM 5210

assay

81.0-83.0% MoO₃ basis

form

crystalline

reaction suitability

reagent type: catalyst
core: molybdenum

impurities

≤0.005% Insoluble matter

density

2.498 g/mL at 25 °C (lit.)

anion traces

arsenate, phosphate, and silicate (as SiO₂): ≤0.001%, chloride (Cl^-): ≤0.002%, nitrate (NO₃^-): passes test (limit about 0.003%), phosphate (PO₄^3-): ≤5 ppm, sulfate (SO₄^2-): ≤0.02%

cation traces

Mg: ≤0.005%, heavy metals: ≤0.001% (as lead)

storage temp.

room temp

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, often employed in cryo-negative staining that helps to identify particles while preserving the material. As a catalyst, it is used to desulfurize thiophene and its derivatives.

Application

Ammonium molybdate tetrahydrate can be used as:

A molybdenum source in the synthesis of sodium molybdate dihydrate (Na₂MoO₄·2H₂O).
A molybdenum source in the synthesis of nickel molybdate nanorods (NiMoO₄) by co-precipitation method in the presence of nickel benzoate as a nickel source.
A precursor in the synthesis of Mn-MoS₂ (MMS). MMS is employed in the production of MMS/rGO (reduced graphene oxide) composite that exhibits the highest rhodamine B (RhB) degradation efficiency.
A catalyst in the synthesis of PVDF (polyvinylidene fluoride) catalytic microcapsules. PVDF is a heterogeneous catalyst for the selective oxidation of benzyl alcohol to benzaldehyde.

Analysis Note

May contain darkened ammonium molybdate crystals that are soluble in water.

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flash_point_f

Not applicable

flash_point_c

Not applicable

Storage Class

13 - Non Combustible Solids

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Class I Designated Chemical Substances

prtr

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

A7302-100G:4.548173947143E12 + A7302-500G:4.548173947174E12 + A7302-1KG:4.54817394715E12 + A7302-2.5KG:4.548173947167E12

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