phosphonic acid
phosphonic acid
CAS: 10294-56-1;858711-57-6
Molecular Formula: H3O3P
phosphonic acid - Names and Identifiers
| Name | phosphonic acid |
| Synonyms | Phosphorou acid phosphonic acid Phosphorous acid Orthophosphorus acid |
| CAS | 10294-56-1 858711-57-6 |
| EINECS | 233-663-1 |
| InChI | InChI=1/H3O3P/c1-4(2)3/h1-3H |
phosphonic acid - Physico-chemical Properties
| Molecular Formula | H3O3P |
| Molar Mass | 82 |
| pKa | 2.22±0.10(Predicted) |
| Physical and Chemical Properties |
|
phosphonic acid - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R35 - Causes severe burns |
| Safety Description | S1/2 - Keep locked up and out of the reach of children. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 2834 |
phosphonic acid - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | phosphorous acid, an inorganic compound, soluble in water and alcohol. It is slowly oxidized to orthophosphoric acid in air. 180 C decomposition of phosphine and positive phosphoric acid. Corrosive. Phosphorous acid is a dibasic acid, and its acidity is slightly stronger than that of phosphoric acid. It has strong reducibility, easily reduces silver ions (Ag) to metallic silver (Ag), and can reduce sulfuric acid to sulfur dioxide. |
| Application | phosphorous acid is mainly used as reducing agent, nylon whitening agent, also used as phosphite raw material, pesticide intermediate and raw material of organophosphorus water treatment agent. |
| Use | is mainly used for urination disorders caused by prostatic hypertrophy. Is a highly selective alpha 1A receptor blocker |
Last Update：2024-04-10 22:29:15
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