Sodium Tungstate Dihydrate CAS#10213-10-2

Excellent Water SolubilityHighly soluble in water (about 74.2 g/100 mL at 25°C), allowing for easy dissolution and efficient use in aqueous systems.


Stable Under Normal ConditionsRemains stable at ambient temperature and pressure, ensuring reliable storage and handling performance.


Mild Alkalinity for Versatile ApplicationsForms a weakly alkaline aqueous solution, making it suitable for applications requiring controlled pH conditions.


Predictable Chemical ReactivityReacts selectively with strong acids to form tungstic acid precipitates, enabling controlled chemical processing and purification steps.


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Product Description

Product Description of Sodium Tungstate Dihydrate CAS#10213-10-2

Sodium Tungstate Dihydrate is a white crystalline powder or colorless to white rhombic crystal, with excellent water solubility. Its solubility in water at 25 °C is about 74.2 g/100 mL, and the aqueous solution is weakly alkaline. It is insoluble in ethanol and slightly soluble in ammonia. The compound is stable under normal temperature and pressure, and gradually loses crystal water upon heating. It reacts with strong acids to generate tungstic acid precipitate.


Product Application of Sodium Tungstate Dihydrate CAS#10213-10-2

Sodium Tungstate Dihydrate (CAS 10213-10-2) features a wide range of applications. Industrially, it is used for steel electroplating, metal surface treatment and petrochemical catalysis. In material science, it acts as a key raw material for the preparation of tungsten trioxide, tungsten carbide and other related tungsten compounds. It is also utilized as an analytical reagent for the detection of various elements. In the pharmaceutical industry, it participates in drug synthesis and enzyme inhibitor research. In agriculture, it can be applied as a trace element fertilizer.

Product Information

Parameters


Melting point698 °C(lit.)
bulk density1600kg/m3
density4.18
storage temp.Store at +15°C to +25°C.
solubilityH2O: 1 M at 20 °C, clear, colorless
formSolid
colorWhite to slightly yellow
Specific Gravity3.25
OdorOdorless
PH9.5-11.5 (25℃, 1M in H2O)
PH Range9 - 11.5 at 100 g/l at 20 °C
Water Solubility730 g/L (20 ºC)
λmaxλ: 260 nm Amax: ≤0.120
λ: 280 nm Amax: ≤0.035
Merck148,698
Exposure limitsACGIH: TWA 3 mg/m3
NIOSH: TWA 1 mg/m3; STEL 3 mg/m3
InChIKeyWPZFLQRLSGVIAA-UHFFFAOYSA-N
CAS DataBase Reference10213-10-2(CAS DataBase Reference)
EPA Substance Registry SystemTungstate (WO42-), disodium, dihydrate, (T-4)- (10213-10-2)


Safety Information


Hazard CodesXn
Risk Statements22-36/38-36
Safety Statements36-37/39-26-39
WGK Germany1
RTECSYO7900000
TSCAYes
HS Code28418000
ToxicityLD50 (mg tungstate/kg) in rabbits: 105 i.m.; in rats: 240 s.c. (Venugopal, Luckey)


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