JPS5697264A - Preparation of aqueous solution of ammonium thioglycolate - Google Patents
Preparation of aqueous solution of ammonium thioglycolateInfo
- 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
Links
Landscapes
- 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
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) |
-
1979
- 1979-12-28 JP JP17340379A patent/JPS5697264A/en active Pending
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