Sodium Tungstate Dihydrate
Products Description of Sodium tungstate dihydrate CAS#10213-10-2
This substance appears as white crystalline powder or colorless to white rhombic crystals, and is highly soluble in water. At 25°C, its solubility in water is approximately 74.2g per 100mL, and its aqueous solution is weakly alkaline. It is insoluble in ethanol and slightly soluble in ammonia. It remains stable under normal temperature and pressure, but will gradually lose its crystalline water when heated. When reacting with strong acids, it forms a tungstic acid precipitate
Parameters
Melting point | 698 °C(lit.) |
bulk density | 1600kg/m3 |
density | 4.18 |
storage temp. | Store at +15°C to +25°C. |
solubility | H2O: 1 M at 20 °C, clear, colorless |
form | Solid |
color | White to slightly yellow |
Specific Gravity | 3.25 |
Odor | Odorless |
PH | 9.5-11.5 (25℃, 1M in H2O) |
PH Range | 9 - 11.5 at 100 g/l at 20 °C |
Water Solubility | 730 g/L (20 ºC) |
λmax | λ: 260 nm Amax: ≤0.120 |
Merck | 14,8698 |
Exposure limits | ACGIH: TWA 3 mg/m3 |
InChIKey | WPZFLQRLSGVIAA-UHFFFAOYSA-N |
CAS DataBase Reference | 10213-10-2(CAS DataBase Reference) |
EPA Substance Registry System | Tungstate (WO42-), disodium, dihydrate, (T-4)- (10213-10-2) |
Safety Information
Hazard Codes Xn Risk Statements 22-36/38-36 Safety Statements 36-37/39-26-39 WGK Germany 1 RTECS YO7900000 TSCA Yes HS Code 28418000 Toxicity LD50 (mg tungstate/kg) in rabbits: 105 i.m.; in rats: 240 s.c. (Venugopal, Luckey)
Hazard Codes | Xn |
Risk Statements | 22-36/38-36 |
Safety Statements | 36-37/39-26-39 |
WGK Germany | 1 |
RTECS | YO7900000 |
TSCA | Yes |
HS Code | 28418000 |
Toxicity | LD50 (mg tungstate/kg) in rabbits: 105 i.m.; in rats: 240 s.c. (Venugopal, Luckey) |
Product Application of HydroquinoneCAS#123-31-9
Sodium tungstate dihydrate (CAS No. 10213-10-2) has wide applications across multiple fields. In industry, it is used for metal electroplating, metal surface treatment, and as a catalyst in petrochemical processes. In materials science, it serves as a key raw material for preparing tungsten trioxide, tungsten carbide, and other tungsten-based materials. In chemical analysis, it acts as a reagent for detecting various elements. In the pharmaceutical industry, it is involved in drug synthesis and research on enzyme inhibitors. Additionally, it can be used as a trace element fertilizer in agriculture.
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