A6621212
Phosphotungstic acid hydrate , AR , 12501-23-4
Synonym(s):
Phosphotungstic acid;Tungstophosphoric acid;Tungstophosphoric acid hydrate
CAS NO.：12501-23-4
Empirical Formula: H6O8PW
Molecular Weight: 348.86
MDL number: MFCD00149915
EINECS: 603-020-3
| Pack Size | Price | Stock | Quantity |
| 25G | RMB68.00 | In Stock |
|
| 100G | RMB226.40 | In Stock |
|
| 500G | RMB816.00 | In Stock |
|
| 2.5kg | RMB3007.20 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | ~95 °C(lit.) |
| Boiling point: | 107.9℃[at 101 325 Pa] |
| Density | 3.88[at 20℃] |
| vapor pressure | 19.2hPa at 20℃ |
| storage temp. | room temp |
| form | Solid |
| color | White |
| PH | 1.3 (20g/l, H2O, 20℃) |
| Water Solubility | soluble |
| Sensitive | Hygroscopic |
| Exposure limits | ACGIH: TWA 3 mg/m3 NIOSH: TWA 5 mg/m3; STEL 10 mg/m3 |
| Stability: | hygroscopic |
Description and Uses
Phosphotungstic acid hydrate may be used as a staining agent for the transmission electron microscope (TEM) imaging of cetyltrimethylammonium bromide (CTAB) coated gold nanorods.
It may be used in the preparation of:
- Phosphotungstic acid doped ormosil hybrid networks.
- Niobia supported phosphotungstic acid (PTA) catalysts.
- Titanium dioxide (TiO2) nanoparticles /phosphotungstic acid (HPW) films.
Safety
| Symbol(GHS) |    GHS05,GHS07,GHS09 |
| Signal word | Danger |
| Hazard statements | H302-H314-H411 |
| Precautionary statements | P260-P273-P280-P301+P312-P303+P361+P353-P305+P351+P338 |
| Hazard Codes | C,Xi |
| Risk Statements | 34-36/37/38 |
| Safety Statements | 26-36/37/39-45-24/25-37/39-36 |
| RIDADR | UN 3260 8/PG 3 |
| WGK Germany | 3 |
| RTECS | TH5650000 |
| F | 3-10-23 |
| TSCA | Yes |
| HS Code | 2811 19 80 |
| HazardClass | 8 |
| Toxicity | LD50 orally in Rabbit: 3300 mg/kg |
