4923-84-6
tert-butylphosphonic acid
CAS: 4923-84-6
Molecular Formula: C4H11O3P
4923-84-6 - Names and Identifiers
| Name | tert-butylphosphonic acid |
| Synonyms | tert-Butylphosponicacid t-Butyl phosphonic acid tert-butylphosphonic acid TERT-BUTYLPHOSPHONIC ACID tert-Butylphosphonic acid Phosphonic acid, (1,1-dimethylethyl)- Phosphonic acid, P-(1,1-dimethylethyl)- |
| CAS | 4923-84-6 |
| InChI | InChI=1/C4H11O3P/c1-4(2,3)8(5,6)7/h1-3H3,(H2,5,6,7) |
4923-84-6 - Physico-chemical Properties
| Molecular Formula | C4H11O3P |
| Molar Mass | 138.1 |
| Density | 1.083 (estimate) |
| Melting Point | 187-189 °C (lit.) |
| Boling Point | 255.4±23.0 °C(Predicted) |
| Flash Point | 108.3°C |
| Vapor Presure | 0.00503mmHg at 25°C |
| Appearance | Crystalline Powder |
| Color | White |
| pKa | pK1: 2.79;pK2: 8.88 (25°C) |
| Storage Condition | Room Temprature |
| Refractive Index | 1.448 |
4923-84-6 - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | 34 - Causes burns |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S27 - Take off immediately all contaminated clothing. S28 - After contact with skin, wash immediately with plenty of soap-suds. 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 2 |
| WGK Germany | 3 |
| HS Code | 29319090 |
| Hazard Class | 8 |
| Packing Group | III |
4923-84-6 - Introduction
tert-butylphosphonic acid is an organophosphorus compound with the chemical formula (CH3)3CPO3H2 with the following properties:
1. appearance: tert-butylphosphonic acid is colorless or yellowish liquid.
2. Solubility: It can be dissolved in water or in many organic solvents, such as alcohols, ethers and esters.
3. Acidity: It is a strong acid that can react with alkali to generate the corresponding salt.
4. Stability: relatively stable at room temperature, but decomposition may occur under high temperature or strong oxidation conditions.
The main uses of tert-butylphosphonic acid include:
1. Catalyst: It can be used as a transesterification catalyst, gas phase polymerization catalyst, alcohol condensation catalyst, etc.
2. Intermediate of phosphine chemical reaction: It can be used as a synthetic intermediate of phosphine compounds in organic synthesis.
3. Surfactants: tert-butylphosphonic acid and its salts can be used as surfactants, such as emulsifiers in polymer synthesis and coatings.
There are two main methods for the preparation of tert-butylphosphonic acid:
1. Phosphonylation reaction: prepared by reacting tributylphosphine with iodic acid.
2. phosphonation reaction: prepared by reacting tributylphosphine with benzoyl peroxide.
1. appearance: tert-butylphosphonic acid is colorless or yellowish liquid.
2. Solubility: It can be dissolved in water or in many organic solvents, such as alcohols, ethers and esters.
3. Acidity: It is a strong acid that can react with alkali to generate the corresponding salt.
4. Stability: relatively stable at room temperature, but decomposition may occur under high temperature or strong oxidation conditions.
The main uses of tert-butylphosphonic acid include:
1. Catalyst: It can be used as a transesterification catalyst, gas phase polymerization catalyst, alcohol condensation catalyst, etc.
2. Intermediate of phosphine chemical reaction: It can be used as a synthetic intermediate of phosphine compounds in organic synthesis.
3. Surfactants: tert-butylphosphonic acid and its salts can be used as surfactants, such as emulsifiers in polymer synthesis and coatings.
There are two main methods for the preparation of tert-butylphosphonic acid:
1. Phosphonylation reaction: prepared by reacting tributylphosphine with iodic acid.
2. phosphonation reaction: prepared by reacting tributylphosphine with benzoyl peroxide.
Last Update：2024-04-10 22:29:15
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