12-hydroxystearic acid

12-Hydroxystearic acid (CAS 106-14-9), abbreviated 12-HSA, is a hydroxy fatty acid derived from castor oil hydrogenation.

Where is 12-hydroxystearic acid used?

• Rheology modifiers and lubricant thickeners: primary building block
• Lubricant manufacturing: key precursor for lithium and calcium soap greases, determining thickener structure and controlling grease consistency
• Plastics: internal and external lubricant in PVC and other polymer compounds, reducing friction during extrusion and improving surface finish
• Personal care: structure builder in stick products, balms and anhydrous formulations, modifying texture without synthetic waxes
• Pigment pastes: dispersing agent
• Industrial coatings: emulsifier that stabilizes particle distribution

Good to know: Specifications vary by hydroxyl value and free fatty acid content.

Commercial specifications

• Purity levels of 90% and above for standard commercial grades
• Higher-purity grades for cosmetic and specialty applications