PEG Trisiloxane
Synonyms
Poly(oxy-1,2-ethanediyl), alpha-methyl-omega-(3-(1,3,3,3-tetramethyl-1-((trimethylsilyl)oxy)-1-disiloxanyl)propoxy)-;
Category
Silicone Surfactant
> Non-ionic Silicone Surfactant
>> Polyether-group Silicone Polymer
Chemical Numbering System
CAS: 27306-78-1
EINECS: N/A
Molecular Formula & Molecular Weight
Molecular Formula: N/A
Molecular Weight: N/A
Structure
Properties
Appearance (1), liquid to solid.
Solubility slightly soluble in water to soluble in water.
Stability stable.
Risk Solid (or liquid) form: irritation, irritation to skin, eye, respiratory system.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
rat inhalation LC50 |
2000mg/m3/4H[1] |
|
rat intraperitoneal LD50 |
0.25mL/kg[1] |
|
rat oral LD50 |
4.92mL/kg[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent solubilizing, lubricating, dispersing, emulsifying, adsorbing abilities.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Liquid / Solid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Liquid / 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, 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 solubilizing agent.
Use as lubricant.
2, Personal care products
Conditioning agent, emollient, emulsifying agent, cleansing agent, foam boosting agent in personal care products.
Product members
PEG-8 Trisiloxane;
PEG-24 Trisiloxane;
Manufacturers
References
[1]: ChemIDplus. 27306-78-1, Poly(oxy-1,2-ethanediyl), alpha-methyl-omega-(3-(1,3,3,3-tetramethyl-1-((trimethylsilyl)oxy)-1-disiloxanyl)propoxy)-
Update: 20140828(1); 20200905(2);