12-Hydroxy Stearic Acid

Chemical Name:
Octadecanoic Acid, 12-Hydroxy-
  • Product Details & Information

    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.

    Your Sustainable Source for Stearic Acid

    Acme-Hardesty has been a leading supplier of industrial chemicals for more than 70 years. We are committed to offering safer, more responsible solutions derived from renewable sources. To further these goals, we are a member of multiple roundtables and other organizations dedicated to raising the bar for environmental standards in our industry. As one of the oldest and largest importers and distributors of Castor Oil in the U.S. today, Acme-Hardesty Co., carries a full line of Castor Oil Derivatives including 12-Hydroxy Stearic Acid. We can easily accommodate orders of just about any size. Whether you need a pallet of HCO, an isotank of Ricinoleic Acid, or a full truckload of 12HSA, we’re your experienced and reliable source. If you need less than a pallet of 12-Hydroxy Stearic Acid, you can easily place your order online. If you need a larger quantity, simply contact us to receive a price quote.

    Acme-Hardesty has been proudly serving the oleochemical industry for more than 70 years by effectively meeting the needs of customers and suppliers alike. In recent years, we have expanded our focus to include even more renewable, bio-based chemical solutions to meet the evolving needs of our industry. Our leadership is committed to adhering to the principles of sustainability, both today and in the years to come.

    See more details below on 12-Hydroxy Stearic Acid.

  • Uses & Applications

    CASE: Intermediate

    Rubber: Activator / Accelerator

    Personal Care: Emollient, Underarm Deodorants

    Lubricants and Greases: Lithium Grease, Lithium Complex Grease

  • Grades and Forms Available


  • Packaging

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

  • Shelf Life

    Two Years from Date of Manufacture when stored according to MSDS recommendations

  • INCI Name

    Hydroxystearic Acid

Looking for Less than a Pallet? Shop Online Looking for larger quantities? Get a Quote

Sales Specifications of 12 Hydroxy Stearic Acid

ParametersSpecificationsTest Methods
Acid Value 175 – 185 AOCS Da 14-48
Saponification Value 184 – 192 AOCS Cd 3-25
Iodine Value 4 max AOCS Tg 1a-64
Color Gardner (1963) 7 max AOCS Td 1a-64
Hydroxyl Value 153 min AOCS Cd 13-60
Melting Point, ˚C 72 min AOCS Cc 3-25
Titer, ˚C 72 – 74 AOCS Cc 12-59