TEA-Lactate
Synonyms
Propanoic acid, 2-hydroxy-, compd. with 2,2',2''-nitrilotris(ethanol) (1:1);
Triethanolamine lactate;
Lactic acid, triethanolamine salt;
Category
Anionic Surfactant
> Carboxylate
>> Chain Carboxylate
>>> Hydroxyalkyl Carboxylate
>>>> Hydroxy Linear Alkyl Carboxylate
Chemical Numbering System
CAS: 20475-12-1
EINECS: 243-846-8
Molecular Formula & Molecular Weight
Molecular Formula: C9H21NO6; C6H15N1O3.C3H6O3
Molecular Weight: 239.27
Structure
Properties
Appearance (1), liquid.
Solubility soluble in water.
Stability stable.
Risk Liquid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2 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 dispersing, emulsifying, lubricating abilities.
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
Lactic acid reacts with triethanolamine, then obtains.
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Liquid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
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 emulsifying agent, dispersing agent.
2, Personal care products
Deodorant in personal care products.
* * * * * *
Further information:
(1), In accordance with Safety and Technical Standards for Cosmetics (2015 Edition) of China:
(1a), Lactic acid and its salts are included in the restricted components.
Maximum content is 6% (as acid).
The pH value of the product is greater than or equal to 3.5 (except rinse-off hair products).
Used in non-sunscreen cosmetics, when content is greater than or equal to 3.0 (as acid) or when the label claims to contain it, this label should be noted that this product is used in conjunction with sunscreen cosmetics.
(1b), TEA is included in 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.
When used, the dosage of lactic acid (1a) and TEA (1b) should be simultaneously satisfied.
(2), 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.
Manufacturers
Update: 20140309(1); 20180917(2);