Hydrogenated castor oil

Hydrogenated castor oil (CAS 8001-78-3), also known as HCO or Castorwax MP 70, is produced by the catalytic hydrogenation of castor oil into a hard, waxy solid. It functions primarily as a rheology modifier, lubricant, and plasticizer across personal care, industrial coatings, and polymer applications.

In personal care, HCO provides structure and texture to lipsticks, balms, and stick formulations, where its high melting point prevents product softening. Industrial lubricant manufacturers use it as a base component or additive in greases, where it contributes thickening performance and load-bearing stability.

In coatings and adhesives, Disparlon 805 — a recognized derivative form — is used as an anti-settling and sag-resistance agent in solvent-borne systems. Plastics compounders incorporate it as a processing aid and softener in PVC and rubber formulations to improve flow and surface finish.

Hydrogenated castor oil is supplied as white to off-white flakes, pastilles, or powder. Standard commercial grades include cosmetic-grade and technical-grade, with cosmetic-grade material typically meeting USP or food-contact specifications.

Purity levels and melting point ranges vary by grade, with buyers selecting based on application requirements for hardness and melt behavior. This versatile chemical remains a staple for manufacturers seeking reliable thickening and lubrication properties in diverse industrial environments.