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Diethylphosphite is an intermediate chemical used to make agrochemicals and flame retardants.

Diethyl phosphite is a a synthesis chemical known for its phosphorylating effect. Basically the production of agrochemicals and flame retardants accounts for the major part of the synthesis chemicals consumption. Beyond that alkyl phosphites are used as intermediates in chemical reactions such as creating carbon-carbon double bonds.

Business Unit : Functional Chemicals

Properties & Benefits

  • Very reactive intermediate

Areas of Applications

  • Polymeres
  • Polymer auxiliaries
  • Flame retardants for polymers
  • Agriculture
  • Pesticides
  • Manufacturing of flame retardants
  • Chemical synthesis
  • Catalysis and Chemicals Processing


  • DEPI
  • Diethylhydrogenphosphite
  • Diethylphosphite

CAS Number : 000762-04-9


Pauline Yu
Rhein Chemie Additives

LANXESS Chemical (China) Company Limited
Shanghai Office

6F, 5 Corporate Avenue

150 Hu Bin Road, Huangpu District

200021 Shanghai

China, CN

Phone: +86 21 6109 6624

Fax: +86 21 6109 6633

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