09878

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09878

Ammonium molybdate tetrahydrate

BioUltra, ≥99.0% (T)

All Photos(1)

Synonym(s):

Ammonium heptamolybdate tetrahydrate, Molybdic acid ammonium salt tetrahydrate

Linear Formula:

(NH₄)₆Mo₇O₂₄ · 4H₂O

CAS Number:

12054-85-2

Molecular Weight:

1235.86

EC Number:

234-320-9

MDL number:

MFCD00167059

PubChem Substance ID:

329748853

NACRES:

NA.26

product line

BioUltra

Quality Level

200

Assay

≥99.0% (T)

reaction suitability

reagent type: catalyst
core: molybdenum

impurities

insoluble matter, passes filter test

pH

4.0-5.5 (25 °C, 0.05 M in H₂O)

solubility

H₂O: 0.05 M at 20 °C, clear, colorless

density

2.498 g/mL at 25 °C (lit.)

anion traces

chloride (Cl^-): ≤10 mg/kg
nitrate (NO₃^-): ≤20 mg/kg
phosphate, silicate, arsenate (as PO₄^3-): ≤10 mg/kg
sulfate (SO₄^2-): ≤100 mg/kg

cation traces

Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

absorption

cut-off at 360 nm in H₂O at 0.05 M

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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1 of 4

This Item	431346	M1019	M0878
Sigma-Aldrich 09878 Ammonium molybdate tetrahydrate	Sigma-Aldrich 431346 Ammonium molybdate tetrahydrate	Sigma-Aldrich M1019 Ammonium molybdate tetrahydrate	Sigma-Aldrich M0878 Ammonium molybdate tetrahydrate
assay ≥99.0% (T)	assay 81.0-83.0% MoO₃ basis, 99.98% trace metals basis	assay 81.0-83.0% MoO₃ basis	assay 81.0-83.0% MoO₃ basis
reaction suitability reagent type: catalyst core: molybdenum	reaction suitability reagent type: catalyst core: molybdenum	reaction suitability -	reaction suitability -
density 2.498 g/mL at 25 °C (lit.)	density 2.498 g/mL at 25 °C (lit.)	density 2.498 g/mL at 25 °C (lit.)	density 2.498 g/mL at 25 °C (lit.)
cation traces Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg	cation traces Mg and allied cations: ≤0.01%, heavy metals: ≤0.001% (as lead)	cation traces -	cation traces -
Quality Level 200	Quality Level 100	Quality Level 200	Quality Level -
product line BioUltra	product line -	product line BioReagent	product line -

Other Notes

For the determination of phosphorus

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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