Sodium tungstate dihydrate
- CAS No.
- 10213-10-2
- Chemical Name:
- Sodium tungstate dihydrate
- Synonyms
- FOLIN;SODIUM TUNGSTEN OXIDE;SODIUM TUNGSTATE 2H2O;Sodium tung;state dihydrate;SODIUM WOLFRAMATE;SodiumTungstateGr;Sodium tungstate dih;SODIUM TUNGSTATE, ACS;SODIUM WOLFRAMATE 2H2O
- CBNumber:
- CB8393632
- Molecular Formula:
- H2NaO5W-
- Molecular Weight:
- 288.84
- MDL Number:
- MFCD00149190
- MOL File:
- 10213-10-2.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 698 °C(lit.) |
|---|---|
| Density | 4.18 |
| bulk density | 1600kg/m3 |
| 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 Range | 9 - 11.5 at 100 g/l at 20 °C |
| 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 |
| InChI | 1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1; |
| InChIKey | WPZFLQRLSGVIAA-UHFFFAOYSA-N |
| SMILES | O.O.[Na+].[Na+].[O-][W]([O-])(=O)=O |
| Toxicology and Carcinogenesis | Toxicology and Carcinogenesis Studies of Sodium Tungstate Dihydrate (CASRN 10213-10-2) in Sprague Dawley (Hsd:Sprague Dawley SD) Rats and B6C3F1/N Mice (Drinking Water Studies) |
| CAS DataBase Reference | 10213-10-2(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | X1F4NY6U13 |
| EPA Substance Registry System | Tungstate (WO42-), disodium, dihydrate, (T-4)- (10213-10-2) |
| UNSPSC Code | 12352302 |
| NACRES | NA.55 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302 | |||||||||
| Precautionary statements | P264-P270-P301+P312-P501 | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| 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 | |||||||||
| Storage Class | 13 - Non Combustible Solids | |||||||||
| Hazard Classifications | Acute Tox. 4 Oral | |||||||||
| Toxicity | LD50 (mg tungstate/kg) in rabbits: 105 i.m.; in rats: 240 s.c. (Venugopal, Luckey) | |||||||||
| NFPA 704 |
|
Sodium tungstate dihydrate price More Price(86)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 223336 | Sodium tungstate dihydrate ACS reagent, ≥99% | 10213-10-2 | 5g | $55 | 2026-04-30 | Buy |
| Sigma-Aldrich | 1.06673 | Sodium tungstate dihydrate for analysis EMSURE? | 10213-10-2 | 250g | $297 | 2026-04-30 | Buy |
| Sigma-Aldrich | 1.06673 | Sodium tungstate dihydrate for analysis EMSURE? | 10213-10-2 | 1kg | $743 | 2026-04-30 | Buy |
| Sigma-Aldrich | 1.06672 | Sodium tungstate dihydrate EMPLURA? | 10213-10-2 | 1kg | $593 | 2026-04-30 | Buy |
| Sigma-Aldrich | 1.06672 | Sodium tungstate dihydrate EMPLURA? | 10213-10-2 | 25kg | $11880 | 2026-04-30 | Buy |
Sodium tungstate dihydrate Chemical Properties, Uses, Production
Chemical Properties
white to slightly yellow crystalline powder or
Uses
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.
Uses
Sodium tungstate dihydrate is currently being investigated as a potential therapy for obesity. Sodium tungstate dihydrate is also an inhibitor of acid phosphatases.
Uses
Sodium tungstate dihydrate may be used in the preparation of aqueous sols of tungsten oxide dihydrate.
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.
reaction suitability
reagent type: catalyst
core: tungsten
Synthesis
Sodium tungstate can be obtained by reacting tungsten trioxide with sodium hydroxide solution, followed by evaporative crystallization, centrifugal dehydration and drying.
WO3+2NaOH+H2ONa2WO42H2OPurification 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].
Sodium tungstate dihydrate Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
1of3
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| SHANGHAI BANGCHENG CHEMICAL Co.,Ltd. | 021-69106960 13701823997 | 13701823733@163.com | China | 4634 | 60 |
| Shanghai Haomuren New Materials Co., Ltd. | 15317828837 | 3759584103@qq.com | China | 43 | 58 |
| Shanghai Aladdin Bio-Chem Technology Co.,LTD | 400-6206333 13167063860 | anhua.mao@aladdin-e.com | China | 29977 | 65 |
| Rhawn Reagent | 400-400-1332688 18019345275 | huyue@rhawn.cn | China | 14942 | 58 |
| Nantong Runfeng Petrochemical Co., Ltd | 66814565 18912298907 | runfengcbk@qq.com | China | 4899 | 58 |
| Changzhou jinhan pharmaceutical technology co., LTD | 13917833665 | lyg@world-goldpharma.com | China | 144 | 58 |
| Hu' nan Yunbang Pharmaceutical Co., Ltd. | 88532689 15386497078 | yunbang@yunbangapi.com | China | 6935 | 58 |
| Shandong Xiya Chemical Co., Ltd. | 4009903999 13395398332 | sales@xiyashiji.com | China | 20788 | 60 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
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- Oct 10,2025
View Latest Price from Sodium tungstate dihydrate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-17 | Sodium tungstate dihydrate
10213-10-2
|
1kg/Bag | ≥98% | 50 T/Month | Hebei Qujie Technology Co., Ltd. | ||
 |
2026-09-17 | Sodium tungstate dihydrate
10213-10-2
|
1KG | 98%min | 30tons/month | WUHAN FORTUNA CHEMICAL CO., LTD | ||
 |
2026-03-20 | Sodium tungstate dihydrate
10213-10-2
|
1kg | 99% | 100 mt | Hebei Chuanghai Biotechnology Co., Ltd |
-
- Sodium tungstate dihydrate
10213-10-2
- $0.00
- ≥98%
- Hebei Qujie Technology Co., Ltd.
-
- Sodium tungstate dihydrate
10213-10-2
- $0.00
- 98%min
- WUHAN FORTUNA CHEMICAL CO., LTD
-
- Sodium tungstate dihydrate
10213-10-2
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
