Process for preparing aluminum ethyl phosphite

Details Process for preparing aluminum ethyl phosphite Process for preparing aluminum ethyl phosphite

1977-11-15

1979-03-06

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07F 506

Patent

active

041430590

ABSTRACT:
Aluminum ethyl phosphite, useful as a plant fungicide, is made in an industrial process in high yield and good quality by reacting an excess of a ternary mixture of diethyl phosphite, monoethyl phosphite and phosphoric acid, with alumina at 20-200.degree. C. under subatmospheric pressure, while eliminating water formed during the reaction.

REFERENCES:
patent: 2992262 (1961-07-01), Sears et al.
patent: 3412118 (1968-11-01), Kujawa et al.
patent: 3474464 (1969-10-01), Matthews et al.
Arlovski et al., J. Gen. Chem., USSR vol. 42, pp. 1924-1927 (1972).

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