TEA-Cocoyl Alaninate
Synonyms
Triethanolamine N-Cocoyl-L-Alaninate;
L-Alanine, N-coco acyl derivs., compds. with triethanolamine (1:1);
Category
Anionic Surfactant
> Carboxylate
>> Acyl Amino Acid Salt
>>> Fatty Acyl Amino Acid Salt
>>> Fatty Acyl (Natural substance derivative) Amino Acid Salt
Chemical Numbering System
CASRN：301341-05-9
EINECS：N/A
Molecular Formula & Molecular Weight
Molecular Formula: N/A
Molecular Weight: N/A
Structure
R: coco group.
Properties
Appearance (1), colorless to pale yellow liquid.
Solubility soluble in water.
Stability stable.
Risk Liquid form: irritation, low irritation to skin, eye.
GHS (Rev.10) label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent cleansing, emulsifying, dispersing, wetting, permeating, solubilizing, foaming, foam stabilizing, antirust, anticorrosive abilities. Good compatibility. Resistance to hard water. Mild surfactant. Suitable for preparation of “non-sulfate” formula.
Note (1), Should not be used in children products that can be direct prolonged contact with the skin, such as skin care products.
(2), Avoid using in children cleaning products, such as shampoos.
(3), Do not use in nitrosating environment. Reaction of triethanolamine and nitrous acid can not produce nitrosamines, however, reaction of contained secondary amine of triethanolamine and nitrous acid can produce nitrosamines. Nitrosamine is a carcinogen.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Liquid |
|
|
Actives, %, ≥ |
25.0 |
|
pH (25°C, 1% solution) |
7.5 - 9.5 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents - Detergents - Testing methods
GB/T 5173 Surface active agents and detergents－Determination of anionic-active matter by direct two-phase titration procedure
ISO 2271 Surface active agents -- Detergents -- Determination of anionic-active matter by manual or mechanical direct two-phase titration procedure
(2), pH
GB/T 6368 Surface active agents - Determination of pH of aqueous solution - Potentiometric method
ISO 4316 Surface active agents -- Determination of pH of aqueous solutions -- Potentiometric method
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Liquid |
|
|
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 cleansing agent.
Use as emulsifying agent, dispersing agent.
Use as wetting agent, permeating agent.
2, Personal care products
Cleansing agent, conditioning agent in personal care products. Good compatibility with skin, hair. Suitable for sensitive skin.
Further information:
(1), In accordance with EU regulations (EC) No 1223/2009, directive 2003/83/EC, triethanolamine and its salts are included in Annex III/62.
Can be applied to leave-on products and rinse-off products.
Maximum concentration is 2.5% in leave-on products (as triethanolamine).
In raw materials, maximum secondary amine content is 0.5%.
Maximum nitrosamine content is 50μg/kg.
The container is nitrite-free.
(2), In accordance with Safety and Technical Standards for Cosmetics (2015 Edition) of China, triethanolamine and its salts are the restricted components.
Can be applied to leave-on products and rinse-off products.
Maximum concentration is 2.5% in leave-on products (as triethanolamine).
In raw materials, maximum secondary amine content is 0.5%.
Maximum nitrosamine content is 50μg/kg.
The container is nitrite-free.
3, Household detergents
Cleansing agent in household cleaning products.
4, Industrial cleaning agents
Cleansing agent, antirust agent in industrial cleaning.
Manufacturers
Update: 20131124(1); 20181224(2);