Sodium tungstate dihydrate
Synonym(s):Sodium tungstate dihydrate;Tungstic acid sodium salt dihydrate
- CAS NO.：10213-10-2
- Empirical Formula: H2NaO5W-
- Molecular Weight: 288.84
- MDL number: MFCD00149190
- EINECS: 600-275-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-08-21 22:41:43
What is Sodium tungstate dihydrate?
Chemical properties
white to slightly yellow crystalline powder or
The Uses of Sodium tungstate dihydrate
Sodium tungstate dihydrate is currently being investigated as a potential therapy for obesity. Sodium tungstate dihydrate is also an inhibitor of acid phosphatases.
The Uses of Sodium tungstate dihydrate
Fireproofing and waterproofing fabrics; preparing complex Compounds such as phosphotungstate and silicotungstate; as a protective colloid in biological development methods; precipitant for alkaloids; catalyst in oxidation reactions; corrosion inhibitor for steel.
The Uses of Sodium tungstate dihydrate
Sodium tungstate dihydrate may be used in the preparation of aqueous sols of tungsten oxide dihydrate.
What are the applications of Application
Sodium tungstate dihydrate is an oxidating agent
Definition
ChEBI: A hydrate that is the dihydrate form of sodium tungstate. Combines with hydrogen peroxide for the oxidation of secondary amines to nitrones
General Description
Sodium tungstate dihydrate is a sodium salt of tungstic acid, which occurs as white colorless crystals.
Purification Methods
The salt crystallises from hot water (0.8mL/g) on cooling to 0o. [Grüttner & Jender in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II p 1727 1965].
Properties of Sodium tungstate dihydrate
| 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 |
| color | White to slightly yellow |
| Specific Gravity | 3.25 |
| PH Range | 9 - 11.5 at 100 g/l at 20 °C |
| Odor | Odorless |
| PH | 9.5-11.5 (25℃, 1M in H2O) |
| 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 |
| CAS DataBase Reference | 10213-10-2(CAS DataBase Reference) |
| EPA Substance Registry System | Tungstate (WO42-), disodium, dihydrate, (T-4)- (10213-10-2) |
Safety information for Sodium tungstate dihydrate
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P501:Dispose of contents/container to..… |
Computed Descriptors for Sodium tungstate dihydrate
| InChIKey | WPZFLQRLSGVIAA-UHFFFAOYSA-N |
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