phosphonic acid, P-ethyl-, diethyl ester
Diethyl ethylphosphonate
CAS: 78-38-6
Molecular Formula: C6H15O3P
phosphonic acid, P-ethyl-, diethyl ester - Names and Identifiers
| Name | Diethyl ethylphosphonate |
| Synonyms | Amgard v 490 AURORA KA-1434 DIETHYL ETHYLPHOSPHONATE Diethyl ethylphosphonate DIETHYL ETHANEPHOSPHONATE Diethoxyethylphosphine oxide ETHYLPHOSPHONIC ACID DIETHYL ESTER ETHANEPHOSPHONIC ACID DIETHYL ETHER phosphonic acid, P-ethyl-, diethyl ester 3-methylpentan-3-yl-dioxido-oxophosphorane |
| CAS | 78-38-6 |
| EINECS | 201-111-9 |
| InChI | InChI=1/C6H15O3P/c1-4-8-10(7,6-3)9-5-2/h4-6H2,1-3H3 |
phosphonic acid, P-ethyl-, diethyl ester - Physico-chemical Properties
| Molecular Formula | C6H15O3P |
| Molar Mass | 166.16 |
| Density | 1.024g/mLat 20°C(lit.) |
| Boling Point | 82-83 °C (11 mmHg) |
| Flash Point | 105°C |
| Water Solubility | Miscible with alcohol, ether and organic solvents. Slightly miscible with water. |
| Vapor Presure | 7.2hPa at 20℃ |
| Appearance | Liquid |
| Color | Clear colorless |
| BRN | 1756861 |
| Storage Condition | Room Temprature |
| Stability | Stable, but hydrolyzes under both acidic and basic conditions. Incompatible with strong oxidizing agents. |
| Refractive Index | n20/D 1.417 |
| MDL | MFCD00039888 |
| Use | Is a new type of efficient organic phosphorus flame retardant, can be widely added in a variety of rigid foam |
phosphonic acid, P-ethyl-, diethyl ester - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R41 - Risk of serious damage to eyes R22 - Harmful if swallowed |
| Safety Description | S37/39 - Wear suitable gloves and eye/face protection S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S39 - Wear eye / face protection. |
| UN IDs | UN 3082 9/PG 3 |
| WGK Germany | 2 |
| RTECS | SZ7925000 |
| TSCA | Yes |
| HS Code | 29310040 |
| Hazard Class | 9 |
phosphonic acid, P-ethyl-, diethyl ester - Reference Information
| LogP | 3.2 at 20℃ |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | is a new type of high efficiency organic phosphorus flame retardant, can be widely added in a variety of rigid foam |
| production method | anhydrous ethanol, methyl red and solvent were added to the reaction kettle, and the mixture of phosphorus trichloride and solvent was uniformly added to the high position tank. Ammonia gas was introduced into the kettle at about 0 ° C. With stirring, and phosphorus trichloride was added dropwise at the same time. Adjust the feeding rate of both, keep the reaction temperature at 0~10 ℃, complete the dropwise addition of phosphorus trichloride for about 2~3 hours, and continue ammonia injection for several minutes, the reaction was made Basic (pH 8-9). Add water to dissolve by-product ammonium chloride and a small amount of diethyl phosphite, stand to separate the water layer, recover the solvent by decompression and fractionation of the oil layer, and then vacuum fractionation to collect triethyl phosphite with boiling point of 52-53 ℃(1999.8), the yield was 70% ~ 75%. The reaction solvent is preferably petroleum ether at about 90 ° C., and trichloroethylene, toluene and xylene may also be used. Diethyl ethylphosphonate can be obtained by isomerization reaction of triethyl phosphite under the action of catalyst. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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