Surfactants
REACH
Polyethylene glycol monostearate
CAS Number
9004-99-3
EC Number
618-405-1
E Number
E431
What is Polyethylene glycol monostearate?
Polyethylene glycol monostearate (CAS 9004-99-3), also known as polyoxyethylene stearate and approved as E430, is a nonionic emulsifier and surfactant derived from stearic acid and polyethylene glycol.
Where is Polyethylene glycol monostearate used?
- Food: emulsifier in bakery products, ice cream and shortenings
- Pharmaceuticals: polyoxyl 40 stearate as solubilizing carrier for poorly water-soluble actives in oral and topical dosage forms
- Cosmetics and personal care: stabilizes creams and lotions, smooth spreadable texture
- Textile and paper processing: softening and dispersing agent
- It stabilizes oil-in-water emulsions and modifies rheology.
Good to know: The number designation reflects the average ethylene oxide units and determines the HLB value, influencing grade selection.
Other Names (Synonyms)
polyoxyl (40) stearate|polyoxyethylene stearates|polyoxyethylene 40 stearate|polyoxyethylene (40) monostearate|polyethylene glycol stearate|PEG-40 stearate|Ethylene glycol monostearate|Glycol stearate|E430
What are the physical properties of Polyethylene glycol monostearate?
Melting Point 33-37 °C
Flash Point 39 °C
Appearance Solid
Color White to Almost white
Odor Mild fatty
Form powder to lump
Water Solubility Soluble in water
Log P 7.629 (est)
How is Polyethylene glycol monostearate classified and handled safely? Learn More
Warning
GHS07· Irritant
Hazard Statements
H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation
Precautionary Statements
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
Which trade and regulatory codes apply to Polyethylene glycol monostearate?
HS Code 3907200000
Storage Class 11 - Combustible Solids
WGK (Germany) 1