JPS5697264A - Preparation of aqueous solution of ammonium thioglycolate - Google Patents

Preparation of aqueous solution of ammonium thioglycolate

Info

Publication number
JPS5697264A
JPS5697264A JP17340379A JP17340379A JPS5697264A JP S5697264 A JPS5697264 A JP S5697264A JP 17340379 A JP17340379 A JP 17340379A JP 17340379 A JP17340379 A JP 17340379A JP S5697264 A JPS5697264 A JP S5697264A
Authority
JP
Japan
Prior art keywords
water
aqueous solution
solution
organic solvent
ammonium thioglycolate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP17340379A
Other languages
Japanese (ja)
Inventor
Kazuo Tamashima
Shizuo Nagasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Denki Kagaku Kogyo KK filed Critical Denki Kagaku Kogyo KK
Priority to JP17340379A priority Critical patent/JPS5697264A/en
Publication of JPS5697264A publication Critical patent/JPS5697264A/en
Pending legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To obtain the titled aqueous solution which is a raw material for a permanent waving agent readily in high yield, by adding a specific proportion of water to a thioglycollic acid solution in a water-insoluble organic solvent, removing impurities, and bringing the purified solution into contact with aqueous ammonia.
CONSTITUTION: 1pt.wt. aqueous solution of thioglycollic acid in a water-insoluble organic solvent is mixed with water in an amount of 1/40W1/200pts.wt. to remove impurities. The purified solution is then brought into contact with aqueous ammonia, and the resultant aqueous phase of ammonium thioglycolate is separated to give a colorless and transparent aqueous solution of ammonium thioglycolate. Ethyl ether or ethyl acetate may be cited as the organic solvent. The washing operation with water may be carried out by any of the batch and continuous method, and the washing time with water is about 5W60min the method is characterized by the simple operation and little loss of the thioglycollic acid.
COPYRIGHT: (C)1981,JPO&Japio
JP17340379A 1979-12-28 1979-12-28 Preparation of aqueous solution of ammonium thioglycolate Pending JPS5697264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17340379A JPS5697264A (en) 1979-12-28 1979-12-28 Preparation of aqueous solution of ammonium thioglycolate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17340379A JPS5697264A (en) 1979-12-28 1979-12-28 Preparation of aqueous solution of ammonium thioglycolate

Publications (1)

Publication Number Publication Date
JPS5697264A true JPS5697264A (en) 1981-08-05

Family

ID=15959766

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17340379A Pending JPS5697264A (en) 1979-12-28 1979-12-28 Preparation of aqueous solution of ammonium thioglycolate

Country Status (1)

Country Link
JP (1) JPS5697264A (en)

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