Calcium Stearoyl Lactylate
Synonyms
Calcium 2-(1-oxo-2-(1-oxooctadecoxy)propoxy)propanoate;
Calcium stearoyl-2-lactylate;
Octadecanoic acid, 2-(1-carboxyethoxy)-1-methyl-2-oxoethyl ester, calcium salt;
Stearic acid, ester with lactic acid bimol. ester, calcium salt;
CSL;
Category
Anionic Surfactant
> Carboxylate
>> Ester Carboxylate
>>> Acyloxy Fatty Acid Salt
>>> Linear Alkyl Acyl Lactate
Chemical Numbering System
CAS: 5793-94-2
EINECS: 227-335-7
Molecular Formula & Molecular Weight
Molecular Formula: C48H86CaO12; C24H44O6.1/2Ca
Molecular Weight: 895.27
Structure
Properties
Appearance (1), white or creamy-white powder or waxy solid.
Solubility insoluble in water; dispersed in hot water; soluble in oil and grease.
Hygroscopicity hygroscopic.
Stability stable. Under strong acid or strong alkali, easily hydrolyzed.
Risk Solid 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 emulsifying, dispersing, solubilizing, lubricating abilities.
Synthesis
Obtained that stearic acid reacts with lactic acid and neutralizes by calcium hydroxide.
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
85.0 |
|
Acid value (as KOH), mg/g |
50 - 130 |
|
Ester value (as KOH), mg/g |
125 - 190 |
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), Acid value
GB 1886.179 Food safety national standard -- Food additive -- Calcium stearoyl lactylate
(3), Ester value
GB 1886.179 Food safety national standard -- Food additive -- Calcium stearoyl lactylate
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, Product standards
(1), Chinese standards
(1a), GB 1886.179 Food safety national standard -- Food additive -- Calcium stearoyl lactylate
4, 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 dispersing agent, emulsifying agent.
Use as lubricant.
2, Personal care products
Emulsifying agent in personal care products.
3, Food
Use as food additive (emulsifying agent, stabilizing agent).
Manufacturers
Update: 20140202(1); 20190128(2);