PEG Stearate Phosphate
Synonyms
Poly(oxy-1,2-ethanediyl), alpha-stearoyl-omega-hydroxy-, phosphate;
Category
Anionic Surfactant
> Phosphate
>> Polyether Phosphate
>>> Polyether Acid Ester Phosphate
>>>> Polyoxyethylene Linear Alkyl Fatty Acid Ester Phosphate
Chemical Numbering System
CAS: N/A
EINECS: N/A
Molecular Formula & Molecular Weight
Molecular Formula: N/A
Molecular Weight: N/A
Structure
R: Polyoxyethylene stearic acid ester group or OH.
Properties
Appearance (1), solid.
Solubility slightly soluble to soluble in water.
Stability stable. Under strong acid or strong alkali condition, easily hydrolyzed.
Risk Solid form: irritation, irritation to skin, eye, respiratory system.
GHS label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent cleansing, emulsifying, dispersing, solubilizing, anticorrosive, antirust, lubricating, antistatic, wetting abilities. Performance varies with the number of EO.
Note (1), The by-product 1,4-dioxane is a possible carcinogen. Generally, can be acceptable when concentration of 1,4-dioxane is less than 30ppm or less.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
90.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
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, 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 emulsifying agent, dispersing agent.
Use as anticorrosive agent, antirust agent.
Use as solubilizing agent.
2, Personal care products
Cleansing agent, emulsifying agent in personal care products.
Product members
PEG-45 Stearate Phosphate;
Manufacturers
Update: 20140402(1); 20190325(2);