Triethyl phosphate is a chemical compound with the formula (C2H5)3PO4. It is a colorless liquid. It is the triester of ethanol and phosphoric acid and can be called "phosphoric acid, triethyl ester".
Its primary uses are as an industrial catalyst (in acetic anhydride synthesis), a polymer resin modifier, and a plasticizer (e.g. for unsaturated polyesters). In smaller scale it is used as a solvent for e.g. cellulose acetate, flame retardant, an intermediate for pesticides and other chemicals, stabilizer for peroxides, a strength agent for rubber and plastic including vinyl polymers and unsaturated polyesters, etc.
Triethyl phosphate is also a common intermediate in the manufacture of pesticides.
| Name | Triethyl Phosphate | EINECS | 201-114-5 |
| CAS No. | 78-40-0 | Density | 1.066 g/cm3 |
| PSA | 54.57000 | LogP | 2.20400 |
| Solubility | SOLUBLE | Melting Point | -56.4 ºC
|
| Formula | C6H15O4P | Boiling Point | 219.3 ºC at 760 mmHg |
| Molecular Weight | 182.156 | Flash Point | 115.6 ºC |
| Transport Information | N/A | Appearance | colourless liquid with a mild odour |
Appearance and properties: transparent colorless liquid
Density: 1.072 g/mL at 25 °C(lit.)
Boiling point: 215 °C(lit.)
Melting point: -56 °C
Flash point: 240 °F
Refractive index: n20/D 1.403(lit.)
Water solubility: SOLUBLE
Stability: Stable. Combustible. Incompatible with strong oxidizing agents, water.
Storage conditions: Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Vapor density: 6.28 (vs air)
Vapor pressure: 1 mm Hg (40 °C)
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