12-Hydroxy Stearic Acid

12-Hydroxy Stearic Acid

Inci Name:

Hydroxystearic Acid

Chemical Name:
Octadecanoic Acid, 12-Hydroxy-

12-hydroxy stearic acid is one of many castor oil derivatives sold by Acme-Hardesty. Also known as 12-hydroxystearic acid and 12-HSA, it is used as a thickener for silicon grease, as a rubber activator/accelerator and in the manufacture of certain personal care products, among other applications. Use our product as a sustainable alternative to other emollients and thickeners. For more information about potential applications, please refer to the stearic acid wiki or contact an Acme-Hardesty representative directly.

Product Properties

12-hydroxy stearic acid is sold in flakes and packaged in #50 bags and supersacks. It is available for purchase in our online store, or by contacting our office directly. Store our 12-hydroxystearic at ambient temperatures for up to two years without worrying about degradation.

12-hydroxy stearic acid is entirely vegetable-based, and not tested on animals at any part of the manufacturing process. Its GMO-free, and contains no peanuts, tree nuts, wheat, grains, dairy, eggs, fish or gluten. It also contains no residual solvents and is REACH registered for use in the European Union.

Acme-Hardesty hydroxy stearic acid has a melting point of 72 degrees C, an acid value between 175-185 and a saponification value of 184-192. All testing is performed in a controlled environment to AOCS standards. For detailed product specifications, please download the product data sheet, available on this page.


12-hydroxystearic acid is nonreactive, nonflammable and not an explosive hazard. In flake form, 12-hydroxystearic acid is not irritating to skin and won’t cause respiratory distress. However, standard precautions should be taken when handling this product – work in a well-ventilated area, wear protective clothing and administer first aid if flakes are accidentally ingested.

Uses & Applications

  • Coatings, Adhesives, Elastomers & Sealants: Intermediate
  • Rubber: Activator / Accelerator
  • Personal Care & Cosmetics: Emollient, Underarm Deodorants
  • Lubricants, Grease & Metalworking: Lithium Grease, Lithium Complex Grease

Product Details


Bags, Supersacks. You can also purchase our 50# bags from our Online Store.

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