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Stearyl stearate

CAS Number
2778-96-3
EC Number
220-476-5
Chemical Formula
C36H72O2
Molecular Weight
537.0 g/mol

Description

Stearyl stearate (CAS 2778-96-3 ), also known as octadecyl stearate, is a waxy ester derived from stearic acid and stearyl alcohol used across personal care, industrial lubricant, and polymer processing applications. It functions as a lubricant, plasticizer, and consistency agent, providing controlled slip, texture modification, and processing efficiency depending on the specific formulation requirements of the end user. In personal care, it is incorporated into lipsticks, creams, and solid emulsions to build structure, improve spreadability, and modify skin feel without adding any unwanted greasiness to the final product. Polymer and rubber compounders use it as an internal or external lubricant to reduce melt viscosity and prevent die buildup during extrusion and calendering processes for various industrial materials. In metalworking and industrial lubrication, it functions as a solid lubricant component in greases and release agents where high-temperature stability and low migration are considered top priorities. Textile and leather finishing operations apply it as a softening agent to improve hand feel and surface slip on treated substrates, ensuring a high-quality finish for consumer and industrial goods. Stearyl stearate is supplied as a white to off-white waxy solid, typically in flake or pastille form suited for melt blending and direct weighing in large scale manufacturing environments. Technical and cosmetic grades are the most commonly available, with cosmetic-grade material meeting purity requirements for personal care formulations. Bulk supply is standard for industrial buyers. Contact us for supply of Stearyl stearate Request Quote

Other Names (Synonyms)

Octadecyl stearate | Octadecanoic acid, octadecyl ester | Stearic acid, stearyl ester | octadecanyl octadecanoate | 5WX2EGD0DK | Stearic acid octadecyl ester | Octadecyl octadecanoate

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point63 °C
Boiling Point549.1±18.0 °C(Predicted)
Density0.857±0.06 g/cm3(Predicted)
Flash Point-4°C
Appearancewhite powder or platelets
ColorWhite
FormPowder or Platelets
Water Solubility0ng/L at 25℃
Vapor Pressure0Pa at 25℃
Log P17.09

Trade & Regulatory

HS Code29157090
Storage Class11 - Combustible Solids