2-Hydroxypropyl laurate
Synonyms
Dodecanoic acid, 2-hydroxypropyl ester;
Propylene glycol laurate;
Category
Non-ionic surfactant
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Chemical Numbering System
CASRN: 142-55-2
EINECS: 205-542-3
Molecular Formula & Molecular Weight
Molecular Formula: C15H30O3
Molecular Weight: 258.40
Structure
Properties
Appearance (1), pale yellow paste.
Solubility insoluble in water.
Stability stable. Under strong acid or strong alkali condition, easily hydrolyzed.
Risk Paste 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 (Rev.10) label: 
Animal Toxicity
Table 1 Animal toxicity values
|
rat oral LD50 |
>34600mg/kg[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent lubricating, dispersing, emulsifying, solubilizing abilities.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Paste |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Paste |
|
|
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 1886.236 Food safety national standard -- Food additive -- Propylene glycol esters of fatty acid
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 lubricant.
Use as dispersing agent, emulsion stabilizer.
2, Personal care products
Conditioning agent, emulsifying agent in personal care products.
3, Food
Use as food additive (emulsifying agent, stabilizer).
Manufacturers
References
[1]: ChemIDplus. 142-55-2, Dodecanoic acid, 2-hydroxypropyl ester
Update: 20200628(1);