POLYHYDROXYSTEARIC ACID- ▸ Pigment dispersant: Wets and disperses pigments in oils and esters.
- ▸ Steric stabilizer: Prevents pigment flocculation in non-aqueous systems.
- ▸ W/O emulsion stabilizer: Stabilizes water-in-oil emulsions.
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Polyhydroxystearic Acid (PHSA, CAS 58128-22-6) is an oligomeric polyester of 12-hydroxystearic acid. It is used as a pigment and particle dispersant and steric stabilizer in non-aqueous and water-in-oil systems and as an emulsion stabilizer and skin-conditioning agent in color cosmetics.
Frequently Asked Questions
What is polyhydroxystearic acid used for?
Polyhydroxystearic acid (PHSA, CAS 58128-22-6) is used as a pigment and particle dispersant and steric stabilizer in non-aqueous and water-in-oil systems. It also stabilizes W/O emulsions and is used in color cosmetics.
How does polyhydroxystearic acid work as a pigment dispersant?
PHSA is an oligomeric polyester of 12-hydroxystearic acid that wets pigment surfaces and provides steric stabilization, preventing flocculation in oils and esters. This keeps pigments evenly dispersed in non-aqueous and W/O bases.
What is polyhydroxystearic acid made from?
It is an oligomeric (self-condensed) polyester of 12-hydroxystearic acid, CAS 58128-22-6.
What is polyhydroxystearic acid in lip balm and color cosmetics?
In these products it functions as a pigment dispersant and steric stabilizer that keeps colorants evenly suspended in the oil phase, and as a W/O emulsion stabilizer. It is incorporated into the oil/wax phase during compounding.
What is the cost of bulk polyhydroxystearic acid?
Pricing depends on grade, form, and volume. Request a current quote from RawSource with your specification and annual volume; a CoA and SDS are provided with each shipment.