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28-4640

Sigma-Aldrich

Sodium tungstate dihydrate

JIS special grade, 99.0-100.5

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Synonym(s):
Tungstic acid sodium salt dihydrate
Linear Formula:
Na2WO4 · 2H2O
CAS Number:
10213-10-2
Molecular Weight:
329.85
EC Number:
236-743-4
MDL number:
MFCD00149190
UNSPSC Code:
12352302
PubChem Substance ID:
329753203

grade

JIS special grade

Assay

99.0-100.5

form

crystals

reaction suitability

reagent type: catalyst
core: tungsten

availability

available only in Japan

pH

9.0-11.5 (20 °C, 100 g/L)

mp

698 °C (lit.)

SMILES string

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

InChI

1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;

InChI key

WPZFLQRLSGVIAA-UHFFFAOYSA-N

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Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302

Precautionary Statements

P264 - P270 - P301 + P312 - P501

Hazard Classifications

Acute Tox. 4 Oral

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Andrew R Osterburg et al.
Journal of immunotoxicology, 7(3), 174-182 (2010-02-25)
The potential for adverse health effects of using tungsten and its alloys in military munitions are an important concern to both civilians and the US military. The toxicological implications of exposure to tungsten, its alloys, and the soluble tungstate (Na(2)WO(4))
Delia Zafra et al.
FEBS letters, 587(3), 291-296 (2012-12-25)
Tungstate treatment ameliorates experimental diabetes by increasing liver glycogen deposition through an as yet unidentified mechanism. The signalling mechanism of tungstate was studied in CHOIR cells and primary cultured hepatocytes. This compound exerted its pro-glycogenic effects through a new G-protein-dependent
M Amigó-Correig et al.
Diabetes, obesity & metabolism, 13(3), 235-242 (2011-01-06)
Sodium tungstate is an anti-obesity drug targeting peripheral tissues. In vivo, sodium tungstate reduces body weight gain and food intake through increasing energy expenditure and lipid oxidation, but it also modulates hypothalamic gene expression when orally administered, raising the possibility
Gustavo S Guandalini et al.
Chemical research in toxicology, 24(4), 488-493 (2011-03-08)
Heavy metal tungsten alloys have replaced lead and depleted uranium in many munitions applications, due to public perception of these elements as environmentally unsafe. Tungsten materials left in the environment may become bioaccessible as tungstate, which might lead to population
M Milagros Gómez-Gómez et al.
Talanta, 84(4), 1011-1018 (2011-05-03)
It is known that oral administration of sodium tungstate preserves the pancreatic beta cell function in diabetic rats. Healthy and streptozotocin-induced diabetic rats were treated with sodium tungstate for one, three or six weeks, after which the species of W
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