Methyl stearate, ethoxylated
Synonyms
Fatty Methyl Ester Ethoxylates;
FMEE;
Category
Non-ionic surfactant
> Polyether
>> Ester Polyether
>>> Ester Polyoxyethylene Ether
>>>> Polyoxyethylene Linear Alkanol Esters
Chemical Numbering System
CAS: N/A
EINECS: N/A
Molecular Formula & Molecular Weight
Molecular Formula: (C2H4O)n.C19H38O2
Molecular Weight: N/A
Structure
Properties
Appearance (1), pale yellow liquid; or solid.
Solubility slightly soluble in water (dispersible in water) to soluble in water. The solubility increases with the increase of EO number.
Stability stable. Under strong acid or strong alkali condition, easily hydrolyzed.
Risk Liquid 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, lubricating abilities. Low foaming. High cloud point. Performance is related to EO number.
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 |
|
Liquid |
|
|
Actives, %, ≥ |
70.0 |
|
pH (25°C, 1% solution) |
5.0 - 7.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
(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.
Major Uses
1, Typical applications
Use as cleansing agent. For example, be used in industrial cleaning, household cleaning, textile, chemical fiber, leather, paper-making. Excellent cleansing effect to heavy dirt, wax scale.
Use as emulsifying agent, dispersing agent.
Use as solubilizing agent.
Use as lubricant.
Product members
Manufacturers
Update: 20131002(1); 20191229(2);