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API Impurities

Sodium Tungstate

Reference StandardAvailable on request

Sodium Tungstate (CAS 13472-45-2) supplier Zemixal: Na2O4W, COA and SDS with every lot, worldwide shipping. Part of our API Impurities range.

Pack sizes
Sodium Tungstate chemical structure
CAS number13472-45-2
FormulaNa2O4W
Molar mass293.82 g/mol
Physical formSolid
HS code38229090
InChIKeyXMVONEAAOPAGAO-UHFFFAOYSA-N
IUPAC namedisodium;dioxido(dioxo)tungsten

About Sodium Tungstate

Zemixal supplies Sodium Tungstate within its impurities & Reference Standards portfolio. Identity at a glance (Reference Standard): CAS 13472-45-2, formula Na2O4W and molar mass 293.82 g/mol. It is handled as a solid.

Use cases we see most often

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Storage and safety notes

It carries the GHS signal word Warning (H302), so wear gloves and eye protection and work with good ventilation.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. You receive a certificate of analysis with characterisation data with each order. Request pricing online and we confirm availability, documentation and freight to your country.

Typical uses

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of Sodium Tungstate
Product nameSodium Tungstate
Catalogue numberZX-044513
CAS number13472-45-2
IUPAC namedisodium;dioxido(dioxo)tungsten
Molecular formulaNa2O4W
Molar mass293.82 g/mol
Exact mass293.9101
GradeReference Standard
Physical formSolid
H-bond donors / acceptors0 / 4
Topological polar surface area80.3 Ų
HS code38229090
InChIKeyXMVONEAAOPAGAO-UHFFFAOYSA-N
SMILES[O-][W](=O)(=O)[O-].[Na+].[Na+]
PubChem CID26052
SynonymsDisodium tungstate, Sodium tungstate(VI), Sodium wolframate, Sodium tungsten oxide (Na2WO4), Sodium tungstate (Na2WO4), Tungstic acid, disodium salt, Disodium tungstate (Na2WO4), Sodium tungstate (Na2(WO4)), Disodium tetraoxatungstate (2-), Disodium tetraoxotungstate (2-), Sodium tungstate(VI) (Na2WO4)

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H302Harmful if swallowed

Precautionary statements P264, P270, P301 + P317, P330, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Sodium Tungstate
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Sodium Tungstate

Which CAS number identifies Sodium Tungstate?
Sodium Tungstate is registered under CAS 13472-45-2. You may also see it listed as Disodium tungstate, Sodium tungstate(VI), Sodium wolframate. Our catalogue number for this item is ZX-044513.
What are the formula and molar mass of Sodium Tungstate?
For Sodium Tungstate, its formula is Na2O4W and its molar mass is 293.82 g/mol. InChIKey XMVONEAAOPAGAO-UHFFFAOYSA-N lets you match it in any structure database.
What grade and pack sizes are available for Sodium Tungstate?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Sodium Tungstate?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Sodium Tungstate to my country?
Yes. Because Sodium Tungstate is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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