Phenylphosphinic acid
Phenylphosphinic acid
CAS: 121-70-0;1779-48-2
Molecular Formula: C6H7O2P
Phenylphosphinic acid - Names and Identifiers
| Name | Phenylphosphinic acid |
| Synonyms | phenylphosphonous acid Benzenephosphinic acid hydroxy(oxo)phenylphosphonium |
| CAS | 121-70-0 1779-48-2 |
| EINECS | 217-217-3 |
| InChI | InChI=1/C6H7O2P/c7-9(8)6-4-2-1-3-5-6/h1-5,9H,(H,7,8) |
Phenylphosphinic acid - Physico-chemical Properties
| Molecular Formula | C6H7O2P |
| Molar Mass | 142.09 |
| Melting Point | 83-85°C(lit.) |
| Boling Point | 285.112°C at 760 mmHg |
| Flash Point | 126.231°C |
| Water Solubility | 7.7 g/100 mL (25℃) |
| Vapor Presure | 0.001mmHg at 25°C |
| Appearance | White crystal |
| Storage Condition | Room Temprature |
| MDL | MFCD00002131 |
Phenylphosphinic acid - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | R22 - Harmful if swallowed R34 - Causes burns |
| Safety Description | 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 3261 8/PG 3 |
| WGK Germany | 3 |
| RTECS | SZ5462500 |
Phenylphosphinic acid - Introduction
Phenylphosphonic acid is an organic compound with the chemical formula C6H5PO3H2. The following is the introduction of the nature, use, preparation method and safety information of benzene phosphonic acid:
Nature:
-Phenylphosphonic acid is a colorless crystalline solid with strong hygroscopicity.
-soluble in water, a weak acid.
-Decomposes at high temperature to produce toxic phosphorus oxide compounds.
Use:
-Phenylphosphonic acid is mainly used as a reducing agent and oxidant in organic synthesis.
-In organic synthesis, it can be used to prepare phosphorus-containing compounds, such as phosphonates and phosphonic acid derivatives.
-It can also be used as an additive in the electroplating industry to improve the uniformity and quality of the coating.
-It can also be used as a ligand in some metal-catalyzed reactions.
Method:
The preparation of phenylphosphonic acid generally employs the reaction of phosphoric acid with phenol. Phenol is first reacted with an excess of phosphoric acid under acidic conditions to give phenylphosphonates, which are then hydrolyzed to give phenylphosphonic acid.
Safety Information:
-Phenylphosphonic acid is toxic and may pose a health hazard by contact or inhalation. Care should be taken to avoid skin contact and inhalation of its dust.
-During handling and storage, appropriate protective measures should be taken, such as wearing gloves, safety glasses and protective masks.
-When discarded, it should be handled in accordance with relevant laws and regulations to avoid pollution to the environment.
Nature:
-Phenylphosphonic acid is a colorless crystalline solid with strong hygroscopicity.
-soluble in water, a weak acid.
-Decomposes at high temperature to produce toxic phosphorus oxide compounds.
Use:
-Phenylphosphonic acid is mainly used as a reducing agent and oxidant in organic synthesis.
-In organic synthesis, it can be used to prepare phosphorus-containing compounds, such as phosphonates and phosphonic acid derivatives.
-It can also be used as an additive in the electroplating industry to improve the uniformity and quality of the coating.
-It can also be used as a ligand in some metal-catalyzed reactions.
Method:
The preparation of phenylphosphonic acid generally employs the reaction of phosphoric acid with phenol. Phenol is first reacted with an excess of phosphoric acid under acidic conditions to give phenylphosphonates, which are then hydrolyzed to give phenylphosphonic acid.
Safety Information:
-Phenylphosphonic acid is toxic and may pose a health hazard by contact or inhalation. Care should be taken to avoid skin contact and inhalation of its dust.
-During handling and storage, appropriate protective measures should be taken, such as wearing gloves, safety glasses and protective masks.
-When discarded, it should be handled in accordance with relevant laws and regulations to avoid pollution to the environment.
Last Update：2024-04-10 22:29:15
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