Triethyl phosphite and the catalyst ethyl p-toluenesulfonate were mixed and stirred until homogeneous, then heated to the reflux temperature of triethyl phosphite. After reflux reaction, the mixture was distilled under reduced pressure, and the fraction at 118–120 °C was collected under a vacuum of 0.095 MPa to obtain the colorless and transparent product diethyl ethylphosphonate.
Diethyl ethylphosphonate is used for heavy-metal extraction and solvent separation. It is also used as a gasoline additive, antifoam agent, plasticizer and textile conditioner. Further, it serves as an antistatic agent, flame retardant and as a general reagent in phosphinoalkene and phosphinoalkyne synthesis.
Diethyl Ethylphosphonate can be used as a flame retardant, and also used as a general reagent in phosphinoalkene and phosphinoalkyne synthesis.
Colorless liquid with a mild odor.
Slightly water soluble. May hydrolyze under acid or basic conditions .
Organophosphates, such as DIETHYL ETHYLPHOSPHONATE, are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.
