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S6646

Sigma-Aldrich

Sodium molybdate dihydrate

ACS reagent, pH 7.0-10.5 (25 °C, 5% in solution), 99.5-103.0%

Synonym(s):

Molybdic acid sodium salt dihydrate

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About This Item

Linear Formula:
Na2MoO4 · 2H2O
CAS Number:
Molecular Weight:
241.95
EC Number:
MDL number:
UNSPSC Code:
12352200

grade

ACS reagent

assay

99.5-103.0%

impurities

≤0.005% Insoluble matter

pH

7.0-10.5 (25 °C, 5% in solution)

mp

100 °C (dec.) (lit.)

anion traces

chloride (Cl-): ≤0.005%
phosphate (PO43-): ≤5 ppm
sulfate (SO42-): ≤0.015%

cation traces

Fe: ≤0.001%
NH4+: ≤0.001%
heavy metals (as Pb): ≤5 ppm

SMILES string

O.O.[Na+].[Na+].[O-][Mo]([O-])(=O)=O

InChI

1S/Mo.2Na.2H2O.4O/h;;;2*1H2;;;;/q;2*+1;;;;;2*-1

InChI key

FDEIWTXVNPKYDL-UHFFFAOYSA-N

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Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Chemically generated singlet oxygen (1O2, 1Deltag) is able to oxidize a great deal of hydrophobic substrates from molybdate-catalyzed hydrogen peroxide decomposition, provided a suitable reaction medium such as a microemulsion system is used. However, high substrate concentrations or poorly reactive

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