Ammonium lauroyl sarcosinate
Synonyms
N-Methyl-N-(1-oxododecyl)glycine, ammonium salt;
Lauroyl sarcosine, ammonium salt;
Ammonium N-methyl-N-(1-oxododecyl)glycinate;
Glycine, N-methyl-N-(1-oxododecyl)-, ammonium salt;
Glycine, N-methyl-N-(1-oxododecyl)-, ammonium salt (1:1);
Category
Anionic Surfactant
> Carboxylate
>> Acyl Imino Acid Salt
>>> Fatty Acyl Imino Acid Salt
>>> Linear Alkyl Acyl Imino Acid Salt
Chemical Numbering System
CAS: 68003-46-3
EINECS: 268-130-2
Molecular Formula & Molecular Weight
Molecular Formula: C15H32N2O3; C15H29N1O3.H3N
Molecular Weight: 288.43
Structure
Properties
Appearance (1), colorless to pale yellow liquid; (2), solid.
Solubility soluble in water.
Stability stable. Under alkaline condition, ammonia is released.
Risk Liquid form: irritation, low irritation to skin, eye.
GHS label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent cleansing, emulsifying, dispersing, solubilizing, foaming, antirust, anticorrosive, wetting abilities. Good compatibility. Resistance to hard water. Easily thickened. Mild surfactant. Suitable for “non-sulfate” formula system. Suitable for weak acid formula system.
Note (1), Can be used in children cleaning products.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Liquid |
|
|
Actives, %, ≥ |
90.0 |
|
pH (25°C, 1% solution) |
4.5 - 7.0 |
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 dispersing agent, emulsifying agent.
2, Personal care products
Conditioning agent, antistatic agent, cleansing agent, foaming agent in personal care products.
Good compatibility with skin, hair. Suitable for sensitive skin.
3, Machinery
Use as cleansing agent, anticorrosive agent, antirust agent.
Manufacturers
Update: 20140202(1); 20190107(2);