A7281712
Sodium tungstate dihydrate , 99.99%metalsbasis , 10213-10-2
Synonym(s):
Sodium tungstate dihydrate;Tungstic acid sodium salt dihydrate
CAS NO.：10213-10-2
Empirical Formula: H4Na2O6W
Molecular Weight: 329.85
MDL number: MFCD00149190
EINECS: 600-275-2
| Pack Size | Price | Stock | Quantity |
| 5G | RMB236.80 | In Stock |
|
| 25G | RMB1036.80 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 698 °C(lit.) |
| Density | 4.18 |
| storage temp. | Store at +15°C to +25°C. |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| form | Solid |
| Specific Gravity | 3.25 |
| color | White to slightly yellow |
| 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 λ: 280 nm Amax: ≤0.035 |
| Merck | 14,8698 |
| Exposure limits | ACGIH: TWA 3 mg/m3 NIOSH: TWA 1 mg/m3; STEL 3 mg/m3 |
| InChIKey | WPZFLQRLSGVIAA-UHFFFAOYSA-N |
Description and Uses
Sodium tungstate dihydrate may be used in the preparation of aqueous sols of tungsten oxide dihydrate.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H302 |
| Precautionary statements | P264-P270-P301+P312-P501 |
| 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) |
