??? ?
|
|
??? ? ??
- ???
- 100°C (dec.)
- ?? ?
- 1473°C
- ??
- 5.5 g/mL at 25 °C (lit.)
- ???
- 2.24
- ???
- 1473°C
- ?? ??
- Sealed in dry,Room Temperature
- ???
- insoluble in H2O, acid solutions; soluble in alkaline solutions
- ??? ??
- ??
- ??
- ????? ???
- Specific Gravity
- 5.5
- ???
- ???
- Merck
- 14,9818
- ?? ??
- ACGIH: TWA 3 mg/m3
NIOSH: TWA 5 mg/m3; STEL 10 mg/m3
- ???
- ????. ?? ???? ???? ????.
- InChI
- 1S/2H2O.2O.W/h2*1H2;;;/q;;;;+2/p-2
- InChIKey
- CMPGARWFYBADJI-UHFFFAOYSA-L
- SMILES
- O[W](O)(=O)=O
- CAS ??????
- 7783-03-1(CAS DataBase Reference)
??
- ?? ? ?? ??
- ?? ? ???? ?? (GHS)
| ?? ???? ?? | 36/37/38 | ||
|---|---|---|---|
| ????? | 24/25 | ||
| WGK ?? | 3 | ||
| RTECS ?? | YO7840000 | ||
| TSCA | TSCA listed | ||
| HS ?? | 28259011 | ||
| ???? ??? | 13 - Non Combustible Solids | ||
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
||
| ???? ?? | KE-10695 |
??? ? C??? ??, ??, ??
??? ??
light yellow powder??? ??
Yellow amorphous powder; density 5.59 g/cm3; decomposes at 100°C; insoluble in water and most acids; soluble in hydrofluoric acid, caustic alkalies and ammonia solution. Freshly prepared tungstic acid containing a molecule of water of crystallization is moderately soluble in water.??
Tungstic Acid is used as a starting material in the synthesis of polynanocomposite material and polycrystalline ceramics.?? ??
Tungstic acid may be prepared by either digesting tungstate of lime or by treating tungsten with hydrochloric acid. 1??? ? ?? ?? ? ???
???
WO
??? ???? ??, 1,000 PPM, 10,000 PPM IN ?
Calcium chloride solution 36-40%, (1box=27kgs)
TUNGSTEN ORE
??
??
??????
???????
?? ??
??? ? ?? ??
???( 338)?? ??
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