Sodium Tungstate Dihydrate is an inorganic sodium salt of tungstic acid with the chemical formula Na₂WO₄·2H₂O. It is the hydrated form of sodium tungstate (Na₂WO₄) and occurs as a white crystalline solid that readily dissolves in water. The compound provides a convenient source of tungstate ions and is valued as a reagent in inorganic and organic chemistry. Its chemical behavior is particularly important in oxidation chemistry, where it can function as a mild catalytic reagent, including in hydrogen peroxide based reaction systems. Its crystallographic characteristics have also been investigated for the preparation and study of tungsten-containing materials.
CAS No.: 10213-10-2
Synonyms: Tungstic acid sodium salt dihydrate.
| Physical Properties | |
| Chemical formula | 2Na.W.O4.2H2O |
| IUPAC Name | disodium;dioxido(dioxo)tungsten;dihydrate |
| Molecular weight | 329.85 g/mol |
| Solubility | Soluble in water |
| Density | 3.25 g/cm3 |
| Appearance | White Crystalline Powder |
| Storage | Store at room temperature |
| Chemical Properties | |
| Color | White |
| Physical State | Solid |
| Melting Point | 698 °C |
| Ph | 9-11.5 at 100 g/l at 20 °C |
| Odor | Odorless |
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| Pictograms : |  |
| Hazard Statements : | H302: Harmful if swallowed. |
| Precautionary Statements: | P301+P312: IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell P330: Rinse mouth |
Sodium Tungstate Dihydrate is an inorganic sodium salt of tungstic acid with the chemical formula Na₂WO₄·2H₂O. It is the hydrated form of sodium tungstate (Na₂WO₄) and occurs as a white crystalline solid that readily dissolves in water. The compound provides a convenient source of tungstate ions and is valued as a reagent in inorganic and organic chemistry. Its chemical behavior is particularly important in oxidation chemistry, where it can function as a mild catalytic reagent, including in hydrogen peroxide based reaction systems. Its crystallographic characteristics have also been investigated for the preparation and study of tungsten-containing materials.
CAS No.: 10213-10-2
Synonyms: Tungstic acid sodium salt dihydrate.
| Physical Properties | |
| Chemical formula | 2Na.W.O4.2H2O |
| IUPAC Name | disodium;dioxido(dioxo)tungsten;dihydrate |
| Molecular weight | 329.85 g/mol |
| Solubility | Soluble in water |
| Density | 3.25 g/cm3 |
| Appearance | White Crystalline Powder |
| Storage | Store at room temperature |
| Chemical Properties | |
| Color | White |
| Physical State | Solid |
| Melting Point | 698 °C |
| Ph | 9-11.5 at 100 g/l at 20 °C |
| Odor | Odorless |
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| Pictograms : | |
| Hazard Statements : | H302: Harmful if swallowed. |
| Precautionary Statements: | P301+P312: IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell P330: Rinse mouth |
Sodium tungstate is used in organic synthesis as a catalyst for oxidation and epoxidation reactions. It is also employed in analytical chemistry, tungsten processing, biochemical research, preparation of tungsten-containing nanoparticles and metallic protection baths.
Sodium tungstate (Naâ‚‚WOâ‚„) is an inorganic sodium salt of tungstic acid. Sodium Tungstate Dihydrate is its hydrated form containing two molecules of water in the crystal structure.
The chemical formula of Sodium Tungstate Dihydrate is Na₂WO₄·2H₂O. The dihydrate designation indicates that two water molecules are associated with each formula unit of sodium tungstate.
Sodium Tungstate Dihydrate functions as a mild catalytic reagent in oxidation chemistry. For example, it can participate in alkene epoxidation and, with hydrogen peroxide, promote the oxidation of secondary amines to nitrones.
