二水钨酸钠

Description

Sodium Tungstate Dihydrate · CAS 10213-10-2 · 2Na.W.O4.2 H2O. UNII X1F4NY6U13. Density: 3.25 @25 °C.

Identification

CAS Registry Number	10213-10-2
PubChem CID	150191
Molecular formula	2Na.W.O4.2 H2O
IUPAC name	disodium;dioxido(dioxo)tungsten;dihydrate
UNII (FDA)	X1F4NY6U13

Computed Descriptors

Molecular Weight	329.85
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	6
Rotatable Bond Count	0
Exact Mass	329.931260
Monoisotopic Mass	329.931260
Topological Polar Surface Area	82.3
Heavy Atom Count	9
Formal Charge	0
Complexity	62.2

Physical & Chemical Properties

Density	3.25 @25 °C

Physical description & handling notes

• Colorless or white solid; Effloresces in dry air; [Merck Index] White odorless powder; Soluble in water; [Alfa Aesar MSDS]

GHS Hazard Classification

Reported hazard statements	H302 (100%)

Documented Uses

• Used to fireproof and waterproof fabrics, to make tungsten compounds, as a protective colloid, as a precipitant for alkaloids and proteins, to catalyze oxidation reactions, and as a corrosion inhibitor for steel; [Merck Index]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]

Synonyms

Sodium tungstate dihydrate; 10213-10-2; Sodium tungstate, dihydrate; Tungstic acid, sodium salt, dihydrate; sodium tungstate(VI) dihydrate; Na2WO4.2H2O; sodium orthotungstate dihydrate; X1F4NY6U13; DTXSID0032079; CHEBI:63939; RefChem:184146; DTXCID8012079; 600-275-2; Tungstic acid sodium salt dihydrate; MFCD00149190; disodium;dioxido(dioxo)tungsten;dihydrate

Frequently Asked Questions

What are the CAS number and molecular formula of Sodium Tungstate Dihydrate?

CAS 10213-10-2; molecular formula 2Na.W.O4.2 H2O; molecular weight — g/mol.

What other names is Sodium Tungstate Dihydrate known by?

Sodium tungstate dihydrate, 10213-10-2, Sodium tungstate, dihydrate, Tungstic acid, sodium salt, dihydrate, sodium tungstate(VI) dihydrate, Na2WO4.2H2O.

Is Sodium Tungstate Dihydrate classified as hazardous?

Hazard statements reported: H302.

What are the key physical properties of Sodium Tungstate Dihydrate?

Density: 3.25 @25 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.