CAS Number7783-03-1
SynonymsEINECS 231-975-2; MFCD00011336; Tungstic(VI) acid; Tunstic acid; Dihydrogen wolframate; dihydroxy-dioxotungsten; Tungstic acid; dihydroxidodioxidotungsten; Dihydroxy(dioxo)tungsten
Molecular FormulaH2WO4
Molecular Weight249.85
Purity99%
Density5.5 g/mL at 25 °C(lit.)
Boiling Point1473°C
Melting Point100°C (dec.)
Appearancepowder
EINECS231-975-2
Symbol
Signal WordWarning
| Chemical & Physical Properties | |
|---|---|
| CAS Number | 7783-03-1 |
| Catalog No. | 2A-9016072 |
| Chinese Name | 钨酸 |
| Synonyms | EINECS 231-975-2; MFCD00011336; Tungstic(VI) acid; Tunstic acid; Dihydrogen wolframate; dihydroxy-dioxotungsten; Tungstic acid; dihydroxidodioxidotungsten; Dihydroxy(dioxo)tungsten |
| Molecular Formula | H2WO4 |
| Molecular Weight | 249.85 |
| Purity | 99 |
| Density | 5.5 g/mL at 25 °C(lit.) |
| Boiling Point | 1473°C |
| Melting Point | 100°C (dec.) |
| Appearance | powder |
| Water Solubility | insoluble |
| Storage Condition | It should be stored in a cool, ventilated and dry |
| EINECS | 231-975-2 |
| PubChem ID | 24853375 |
| MDL Number | MFCD00011336 |
| SMILES | O[W](O)(=O)=O |
| InChI | 1S/2H2O.2O.W/h2*1H2;;;/q;;;;+2/p-2 |
| InChI Key | CMPGARWFYBADJI-UHFFFAOYSA-L |
| NACRES Code | NA.23 |
| UNSPSC | 12352300 |
| Hazard Symbols | Transport |
| MSDS | msds/16072_1_7783_03_1.pdf |
| Transport Info | Shipping Name: UN |
| MSDS Transport Info | Module 14. Shipping information 14.1 UN dangerous goods number European Land Transport Dangerous Regulations: -International Maritime Dangerous Regulations: -International Air Transport Dangerous Regulations: - 14.2 United Nations shipping name European Land Transport Dangerous Regulations: Non-dangerous goods IMDG Code: Non-dangerous goods International air transport dangerous goods regulations: non-dangerous goods 14.3 Transport hazard categories European Land Transport Dangerous Regulations: -International Maritime Dangerous Regulations: -International Air Transport Dangerous Regulations: - 14.4 Package group European Land Transport Dangerous Regulations: -International Maritime Dangerous Regulations: -International Air Transport Dangerous Regulations: - 14.5 Environmental hazards European Land Transport Danger Regulations: No International Maritime Danger Regulations International Air Transport Danger Regulations: No Marine pollutants (yes/no): No 14.6 Special reminder to users No data available |
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