Synthesis of thioglycolic acid

Details Synthesis of thioglycolic acid Synthesis of thioglycolic acid

1987-05-26

1991-06-11

Garner, Vivian

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

562592, 562594, C07C31902, C07C31906, C07C32352

Patent

active

050233718

ABSTRACT:
A process for forming thioglycolic acid by contacting in a reaction zone at elevated pressure of at least 250 psig a mixture of monochloroacetic acid and dichloroacetic acid with a molar excess of an alkali metal hydrosulfide to form the alkali metal salt of thioglycolic acid, acidifying said salt and removing the free thioglycolic acid. A preferred process further requires separating any formed thiodiglycolic acid from the resultant liquid phase materials and recycling said acid to the reaction zone.

REFERENCES:
patent: 2413361 (1946-12-01), Martin
patent: 2594030 (1952-04-01), Coons et al.
patent: 3860640 (1975-01-01), Tamura et al.
patent: 3860641 (1975-01-01), Zengel et al.
patent: 3927085 (1975-12-01), Zengel et al.
patent: 4082790 (1978-04-01), Speier
Chemische Berichte, 39, 732-738 (1906), "Zur Kenntniss der Thioglykolsaure" by Klason et al.
Denbigh, K., Chemical Reaction Theory University Press, 1965, pp. 120-121.

Affiliated with

Also associated with

Rating

Synthesis of thioglycolic acid does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Synthesis of thioglycolic acid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synthesis of thioglycolic acid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-783742