Surfactants
REACH
Potassium cetyl phosphate
CAS Number
19035-79-1
EC Number
242-768-1
What is Potassium cetyl phosphate?
Potassium cetyl phosphate (CAS 19035-79-1), also known as cetyl potassium phosphate, is an anionic phosphate ester salt used as an emulsifier and surfactant in personal care and pharmaceutical formulations.
Where is Potassium cetyl phosphate used?
- Cosmetic creams and lotions: primary emulsifying agent
- Pharmaceutical topical formulations, including medicated creams and dermal drug delivery bases: consistent emulsion structure
- Sunscreen formulations: stabilizes UV filter dispersions
- It stabilizes oil-in-water emulsions and modifies surface behavior in topical systems.
Commercial specifications
- Cosmetic-grade and pharmaceutical-grade material; pharmaceutical supply typically meets USP or Ph. Eur. purity standards
- Packaging from small R&D quantities to bulk industrial supply
Other Names (Synonyms)
Cetyl potassium phosphate|03KCY6P7UT|RefChem:175446|cetylphosphate potassium salt|Potassium hexadecyl hydrogenphosphate|1-Hexadecanol, 1-(dihydrogen phosphate), potassium salt (1:1)|1-Hexadecanol, dihydrogen phosphate, monopotassium salt|Monopotassium monocetyl phosphate
What are the physical properties of Potassium cetyl phosphate?
Melting Point 164 - 167°C
Density 1.166[at 20℃]
Color White to Off-White
Form Solid
Water Solubility 18.6mg/L at 20℃
Vapor Pressure 0.003Pa at 20℃
Log P 2.66 at 25℃
How is Potassium cetyl phosphate classified and handled safely? Learn More
Danger
GHS05· Corrosive
Hazard Statements
H318 Causes serious eye damage
Precautionary Statements
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P317 Get emergency medical help.
P264+P265 Wash … thoroughly after handling.
P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.