Phosphorous acid CAS#: 13598-36-2; ChemWhat Code: 18200
Names & Identifiers |
| Product Name | Phosphorous acid |
| Synonyms | PHOSPHONIC ACID;PHOSPHORUS ACID;Phospohorous acid;Ortophosphorous acid;PHOSPHOROUS ACID 50 %;PhosphorousAcid>98%;PhosphorusAcid(Crystals)Pure;Phosphorous acid, extra pure, 98% |
| CAS Registry Number | 13598-36-2 |
| Molecular Formula | H3O3P |
| Molecular Weight | 82 |
| EINECS | 237-066-7 |
| Other Registry Numbers | |
| IUPA Names, InChI, InChI Key, Canonical SMILES, etc.: | IUPA Names, InChI, InChI Key, Canonical SMILES, etc. |
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Chemical & Physical Properties |
| Melting point | 73 °C |
| Boiling Point | 200 °C |
| Density | 1.651 g/mL at 25 °C(lit.) |
| Flash Point | 200°C |
| Storage | 0-6°C |
| form | Crystals |
| pka | pK1 1.29; pK2 6.74(at 25℃) |
| Color | White |
| Water Solubility | SOLUBLE |
| Sensitive | Air Sensitive & Hygroscopic |
| Merck | 14,7346 |
| Stability: | Stable. Incompatible with strong bases. Hygroscopic. |
| More Properties From PubChem | Topological Polar Surface Area, Monoisotopic Mass, etc. |
| NIST Chemistry Reference | (HO)2HPO(13598-36-2) |
| EPA Substance Registry System | Phosphonic acid(13598-36-2) |
Safety & Hazards(Codes & Phrases) |
| Hazard Codes | C |
| R Phrase | 22-35 |
| S Phrase | 26-36/37/39-45 |
| RIDADR | UN 2834 8/PG 3 |
| WGK Germany | 1 |
| RTECS | SZ6400000 |
| F | 3 |
| TSCA | Yes |
| Storage Class | 8 |
| Packing Group | III |
| More Safety & Hazards From PubChem | Signal, GHS Hazard Statements, Precautionary Statement Codes, etc. |
Literature |
| Literature on PubChem | Synthesis References, Metabolite References, etc. |
Patents |
| Patents on PubChem | Related Patents Of This Product |
Transportation, Storage & Usage |
| Transportation | No Information |
| Storage | No Information |
| Usage | No Information |
Spectral Properties |
| No Information |
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