Merck
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277908

Sigma-Aldrich

Ammonium molybdate

99.98% trace metals basis

Synonym(s):
Ammonium orthomolybdate, Diammonium molybdate
Linear Formula:
(NH4)2MoO4
CAS Number:
Molecular Weight:
196.01
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

99.98% trace metals basis

form

solid

reaction suitability

reagent type: catalyst
core: molybdenum

technique(s)

electron microscopy: suitable

impurities

≤250.0 ppm Trace Metal Analysis

solubility

ethanol: insoluble(lit.)

SMILES string

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

InChI

1S/Mo.2H3N.2H2O.2O/h;2*1H3;2*1H2;;/q+2;;;;;;/p-2

InChI key

LZRXBDCICLHKEN-UHFFFAOYSA-L

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General description

Ammonium molybdate can be prepared by dissolving molybdenum trioxide in ammonia.

Application

Ammonium molybdate has been used to prepare phosphomolybdates. (NH4)2MoO4 was used as an analytical reagent for quantitative analysis of phosphates, silicates, arsenates and lead in their aqueous solutions.2 At saturated concentration, (NH4)2MoO4 was used to perform cryo-negative staining and as a negative stain in biological electron microscopy. Ammonium molybdate was used in study of crystallisation of cell-free-expressed membrane proteins.
Ammonium molybdate has been used to prepare phosphomolybdates. (NH4)2MoO4 was used as an analytical reagent for quantitative analysis of phosphates, silicates, arsenates and lead in their aqueous solutions. At saturated concentration, (NH4)2MoO4 was used to perform cryo-negative staining and as a negative stain in biological electron microscopy. Ammonium molybdate was used in study of crystallisation of cell-free-expressed membrane proteins.

Packaging

5, 20, 100 g in poly bottle

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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