Ethanolamine thioglycolate
Synonyms
Monoethanolamine thioglycolate;
Acetic acid, 2-mercapto-, compd. with 2-aminoethanol (1:1);
Category
Non-ionic surfactant
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Chemical Numbering System
CAS: 126-97-6
EINECS: 204-815-4
Molecular Formula & Molecular Weight
Molecular Formula: C4H11NO3S; C2H7N1O.C2H4O2S
Molecular Weight: 153.20
Structure
Properties
Appearance (1), liquid; (2), solid.
Solubility soluble in water.
Stability stable. Easily oxidized.
Risk Solid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2, nitrogen oxides and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent anti-oxidizing, antistatic abilities.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Solid |
|
|
Heavy metals (as Pb), mg/kg, ≤ |
20 |
|
As, mg/kg, ≤ |
3 |
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents -- Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30797 The test method of food detergents -- Determination of total arsenic
3, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
(b), Used in cosmetics, should be test for harmful substances or furtherly test for microorganisms, according to local regulations and standards.
Major Uses
1, Typical applications
Use as antioxidant.
Use as reducing agent.
2, Personal care products
Depilatory, hair waving or straightening agent, reducing agent in personal care products.
Further information:
(1), In accordance with Safety and Technical Standards for Cosmetics (2015 Edition) of China, be included in the restricted components.
In raw materials, maximum secondary amine content is 0.5%.
Maximum nitrosamine content is 50μg/kg.
The container is nitrite-free.
In accordance with Safety and Technical Standards for Cosmetics (2015 Edition) of China, be included in the restricted components.
Can be applied to:
(1a), Hair products
General use: Maximum concentration is 8% (as thioglycolic acid), pH 7 to 9.5.
Professional use: Maximum concentration is 11% (as thioglycolic acid), pH 7 to 9.5.
(1b), Depilatories
Maximum concentration is 5% (as thioglycolic acid), pH 7 to 12.7.
(1c), Hair rinse-off products
Maximum concentration is 2% (as thioglycolic acid), pH 7 to 9.5.
(2), In accordance with EU regulations (EC) No 1223/2009, directive 2003/83/EC, be included in Annex III/61.
Maximum concentration of secondary amine is 0.5% in products.
In raw materials, maximum secondary amine content is 0.5%.
Maximum nitrosamine content is 50μg/kg.
The container is nitrite-free.
In accordance with EU regulations (EC) No 1223/2009, directive 88/233/EEC, be included in Annex III/2a.
Can be applied to:
(1a), Hair products
General use: Maximum concentration is 8% (as thioglycolic acid), pH 7 to 9.5.
Professional use: Maximum concentration is 11% (as thioglycolic acid), pH 7 to 9.5.
(1b), Depilatories
Maximum concentration is 5% (as thioglycolic acid), pH 7 to 12.7.
(1c), Hair rinse-off products
Maximum concentration is 2% (as thioglycolic acid), pH 7 to 9.5.
(1d), Products intended for eyelash waving
Maximum concentration is 11% (as thioglycolic acid), pH 7 to 9.5.
Manufacturers
Update: 20130924(1); 20200725(2);