Stearic Acid
Octadecanoic Acid
- CAS
- 57-11-4
- EC
- 266-928-5
- Food Code
- E570
- Sectors
- Personal Care & Cosmetics, Plastics & Polymers, Food & Nutrition
Stearic acid, also known as octadecanoic acid, is a white waxy solid with formula C18H36O2 and molecular weight 284.48 g/mol. It has a density of 0.94 g/cm³, melting point 69-70°C, and is insoluble in water but soluble in organics like ethanol. Derived from animal or vegetable fats, it is non-hygroscopic, odorless or faintly fatty, and stable under ambient conditions.
SoleChem, an ISO 9001:2015 certified chemical supplier based in Türkiye, delivers Stearic Acid (CAS 57-11-4) to customers in more than 40 countries.
Stearic Acid
Applications
Used as a lubricant in plastics, mold release agent, stabilizer in cosmetics, surfactant in detergents, and in rubber vulcanization; also in food as an additive and in pharmaceuticals for coatings.
Safety & Risks
Low toxicity but dust irritates eyes and throat; causes skin and eye irritation upon contact. Combustible; avoid strong oxidizers which may cause fires. Use PPE and ventilation; Hazard Class not specified.
Packaging
Supplied in 25kg bags or drums with inner liners; rinse containers triply for recycling or puncture for sanitary landfill disposal to ensure compliance.