Triethyl phosphate

• TEP
• Triethyl phosphate

Colorless liquid with a fruity odor

Liquid

1.07 g · cm -3

-57 ° C

215 ° C

20 Pa ( 20 ° C)

• Slowly hydrolyzed in water ( 500 g · l-1 at 25 ° C)
• Soluble in most organic solvents

1.4053 (20 ° C, 589 nm)

Attention

1170 mg · kg -1 ( LD50, rat, oral)

Template: Infobox chemical / molecular formula search available

Triethyl phosphate is an organic compound from the group of phosphoric acid ester under standard conditions to form a colorless liquid.

History

Triethyl phosphate was first investigated by the French chemist Jean Louis Lassaigne beginning of the 18th century.

Production and representation

Triethyl phosphate may be obtained by reaction of phosphorus oxychloride with ethanol.

Properties

Triethyl phosphate is a colorless liquid with a fruity odor, which decomposes at temperatures above 200 ° C, while carbon monoxide, carbon dioxide, phosphorus oxides and phosphine arise. The vapors of triethyl phosphate are 6.29 times as heavy as air.

Use

Triethyl phosphate is mainly used in the Ketensynthese and in the plastics industry, for example as a catalyst. It is also used in plastics such as cellulose acetate, polyesters and polyurethanes, and in the manufacture of pharmaceuticals, agricultural chemicals, coatings and lubricants, as flame retardants, plasticizers, solvents, or as carriers for additives to be incorporated.

Safety

Triethylphosphatdämpfe can form (116 ° C, ignition temperature 454 ° C flash point) explosive mixtures with air.