Zinc diricinoleate

Zinc diricinoleate (CAS 13040-19-2) is a zinc salt derived from ricinoleic acid, the primary fatty acid in castor oil. It is sold under trade names including Tego Sorb 80, Tego Sorb A 30, Kosmos 54, and PY 88TQ, and carries no assigned E-code. The molecular formula is C18H34O3.1/2Zn.

In personal care formulations, zinc diricinoleate functions as a malodour-trapping agent by chemically binding volatile odour molecules at the skin surface rather than masking them, making it a functional ingredient in deodorant sticks and powders. In coatings and textile processing, it acts as a surface-active agent, improving substrate wetting and pigment dispersion stability.

Zinc diricinoleate is supplied in solid and dispersed grades suited to different processing requirements. It falls under REACH registration obligations within the EU, and suppliers should confirm compliance documentation including Safety Data Sheets aligned with Regulation (EC) No 1907/2006. Packaging formats vary by grade and supplier volume.