Preparation and use of alkali metal isethionates from ethionic a

Details Preparation and use of alkali metal isethionates from ethionic a Preparation and use of alkali metal isethionates from ethionic a

1981-06-04

1983-01-18

Siegel, Alan

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260504R, C07C14302

Patent

active

043691447

ABSTRACT:
The invention discloses a process for the preparation of alkali metal isethionates from ethanol-derived ethionic acid and the use of these isethionates to prepare surface active fatty acyl isethionates. A mixture of calcium hydroxide and alkali metal hydroxide is used to separate the isethionate and the presence of an alkali or an alkali metal soap is required to obtain a light-colored fatty acyl isethionate having a yellowness index less than 10.

REFERENCES:
patent: 2810745 (1957-10-01), Wolski
patent: 3243454 (1966-03-01), Klass
patent: 3320292 (1967-05-01), Cahn
patent: 3637793 (1972-01-01), Van Gysel
Wooton et al., J. Org. Chem. 39, 2112 (1974).
Weinreich et al., Bull. Soc. Chim. France 1965, (3) 787.
Michael et al., J.A.C.S. 58, 294 (1936).
Chemical Abstracts, vol. 81, No. 11, Sep. 1974 by Wooton et al., p. 399.
Chemical Abstracts, vol. 63, No. 1, Jul. 1965, Weinreich et al.

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