Sigma-Aldrich

Sodium Tungstate Dihydrate ACS Reagent, 99%, 100 grams

Part Number:
MIL-223336-100G
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2-4 weeks
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1 unit
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Size:
100 grams
Style:
chemical
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Price: $197.88

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Description

Sodium Tungstate Dihydrate ACS Reagent ≥99% 100 Gram

Synonym: Tungstic acid sodium salt dihydrate

  • CAS Number 10213-10-2
  • Linear Formula Na2WO4 · 2H2O
  • Molecular Weight 329.85
  • EC Number 236-743-4
  • MDL number MFCD00149190
  • PubChem Substance ID 329752303
  • NACRES NA.21
Grade ACS reagent
InChI Key WPZFLQRLSGVIAA-UHFFFAOYSA-N
Assay ≥99%
impurities

≤0.01% insolubles
≤0.02 meq/g Titr. free base

mp 698°C (lit.)
anion traces

chloride (Cl-): ≤0.005%
sulfate (SO42-): ≤0.01%

cation traces

Mo: ≤0.001%
heavy metals and iron (as Pb): ≤0.001%

General description

Sodium tungstate dihydrate is a hydrated sodium salt of tungstic acid. It participates as a catalyst in the preparation of various epoxides. Various crystallographic properties of sodium tungstate dihydrate have been analyzed.

Application

Combines with hydrogen peroxide for the oxidation of secondary amines to nitrones.

Sodium tungstate dihydrate (Na2WO4.2H2O) may be employed in the following studies:
As a derivatization Reagent for the determination of hydrogen peroxide by a fluorimetric method.
Synthesis of N-hydroxy-desferrioxamine B, a metabolite of the microbial product desferrioxamine B.
Preparation of highly crystalline CaMoO4, SrMoO4, CaWO4 and SrWO4 nanoparticles.
Sodium tungstate dihydrate may be used in the preparation of aqueous sols of tungsten oxide dihydrate.

Safety Information 

GHS07GHS07

Signal word Warning
Hazard statements H302
RIDADR NONH for all modes of transport
WGK Germany 1
RTECS YO7900000

Documents

Safety Data Sheet

Warnings

Note: These chemicals are for research & laboratory use only. Your order will not be processed if you do not work for, and ship to, a registered laboratory or research facility. Not for topical applications. An official Declaration of Use form may be required.

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WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. Prop 65 Warning

Please note: This product is not returnable.

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MPN:
223336-100G