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2 039 040

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C1

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IPC

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Application

93034130/04, 1993-07-06

(22)

Actual filing date

1993-07-06

(45)

Published

1995-07-09

(72)

Inventor

Gorjacheva M.V.Avramchenko N.R.Gribkova N.M.Rogova E.A.Bel'Skaja L.A.Ivchenko A.I.Demin V.V.

(73)

Holder

Shchelkovskoe Predprijatie Agrokhima

PROCESS FOR PREPARING THIOGLYCOLIC ACID Russian patent published in 1995 - IPC

Abstract RU 2039040 C1

FIELD: organic chemistry. SUBSTANCE: the product is thioglycolic acid of the empirical formula: C2H4O2S. It contains 98% of an active agent. Reagent 1: monochloroacetic acid. Reagent 2: sodium hydroxide. Reaction conditions: pH not higher than 6-6.2. Reagent 3: sodium thiosulfate. Reaction conditions: temperature: 70-75 C. Reagent 4: mineral acid. EFFECT: more efficient process. 1 tbl

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RU 2 039 040 C1

Authors

Gorjacheva M.V.

Avramchenko N.R.

Gribkova N.M.

Rogova E.A.

Bel'Skaja L.A.

Ivchenko A.I.

Demin V.V.

Dates

1995-07-09—Published

1993-07-06—Filed

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