Acid Esters
DETAIL
Structurally similar to stearic acid, hydroxystearic acid is entirely vegetable-based and derived from naturally-occurring fats and oils, most commonly castor oil. 12-HSA is synthesized by oxidizing 2-hexylcyclododecanone with a mixture of permaleic and peracetic acids in methylene chloride. This forms the lactone of hydroxystearic acid, and alkaline hydrolysis of the lactone produces 12-HSA.
Hydroxystearic Acid: An Oleochemical Solution
While many traditional chemicals are classified as petrochemicals, hydroxystearic acid is categorized as an oleochemical.
Nonflammable, non-reactive and not an explosive hazard, hydroxystearic acid isn’t irritating to skin and doesn’t lead to respiratory distress. This makes hydroxystearic acid an especially attractive alternative to petroleum-based thickeners, emollients and surfactants on the market.