Phosphotungstic acid 44-hydrate
- CAS NO.：12067-99-1
- Empirical Formula: H6O80P2W24
- Molecular Weight: 5760.11
- MDL number: MFCD00041964
- EINECS: 235-087-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-24 14:58:06
What is Phosphotungstic acid 44-hydrate?
Chemical properties
white to pale yellow crystalline powder
The Uses of Phosphotungstic acid 44-hydrate
As reagent for alkaloids and many other nitrogen bases, for phenols, albumin, peptone, amino acids, uric acid, urea, blood, carbohydrates; as biological stain.
Safety Profile
Moderately toxic by ingestion. When heated to decomposition it emits toxic fumes of POx.
Properties of Phosphotungstic acid 44-hydrate
| Melting point: | 89℃ [HAW93] |
| RTECS | TH5650000 |
| storage temp. | Inert atmosphere,2-8°C |
| solubility | very soluble in H2O; soluble in ethanol, ethyl ether |
| form | Powder |
| color | White to pale yellow |
| Water Solubility | practical insoluble |
| Merck | 14,7364 |
| Exposure limits | ACGIH: TWA 3 mg/m3 |
| EPA Substance Registry System | Tungsten hydroxide oxide phosphate (12067-99-1) |
Safety information for Phosphotungstic acid 44-hydrate
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation H412:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P363:Wash contaminated clothing before reuse. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Phosphotungstic acid 44-hydrate
Phosphotungstic acid 44-hydrate manufacturer
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