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480967

Sigma-Aldrich

Sodium molybdate dihydrate

99.99% trace metals basis

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:
12352302
PubChem Substance ID:
NACRES:
NA.55

Quality Level

Assay

99.99% trace metals basis

form

powder or crystals

reaction suitability

reagent type: catalyst
core: molybdenum

pH

7-10.5 (25 °C, 5% in water)

mp

100 °C (dec.) (lit.)

density

2.37 g/mL at 25 °C

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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General description

Sodium molybdate dihydrate (SMD) is a molybdic acid disodium salt. Its toxic effect on the avian species, northern bobwhite quail has been investigated. Its ability to inhibit corrosion of 6082 wrought aluminum alloy has been studied in NaCl solution of chlorosulfonic acid.

Application

Sodium molybdate dihydrate may be used to:
  • Prepare the modified Luria broth for growing Methylobacterium extorquens AM1 cells.
  • Prepare shuttle-like barium molybdate (BaMoO4) microstructures under microwave conditions.
  • Synthesize nickel-molybdenum-zinc (NiMoZn) electrode.

Features and Benefits

Meets A.C.S. reagent specifications.

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Interconversion between formate and hydrogen carbonate by tungsten-containing formate dehydrogenase-catalyzed mediated bioelectrocatalysis.
Sakai K, et al.
Sensing and Bio-Sensing Research, 5, 90-96 (2015)
Corrosion and wear of 6082 aluminum alloy.
Panagopoulos CN, et al.
Tribology International, 42(6), 886-889 (2009)
Microwave-assisted synthesis, characterization and photoluminescence of shuttle-like BaMoO4 microstructure.
Phuruangrat A, et al.
Materials Science-Poland, 33(3), 537-540 (2015)
Photoelectrochemical water splitting in an organic artificial leaf.
Esiner S, et al.
Journal of Material Chemistry A, 3(47), 23936-23945 (2015)
Dietary toxicity of soluble and insoluble molybdenum to northern bobwhite quail (Colinus virginianus).
Stafford JM, et al.
Ecotoxicology (London, England), 1-11 (2015)

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