- alias: stearic acid
- stearic acid is a saturated fatty acid commonly found in animal fats, cocoa butter, and shea butter. it is widely used in the cosmetics, pharmaceutical, and eat industries for its emollient and stabilizing properties.
chemical properties
- molecular weight: 284.48 g/mol
- density: 0.847 g/cm³
- melting point: 69–70°C (156–158°F)
- boiling point: 383°C (721°F)
- solubility: insoluble in water; soluble in ethanol, chloroform, and ether
- chemical formula: C₁₈H₃₆O₂
usefulness in medicine
- stearic acid is used in pharmaceutical formulations as a lubricant and stabilizer for tablets and capsules.
- it supports skin health by acting as an emollient, helping to soften and hydrate the skin.
- stearic acid is included in cosmetic products for its thickening and stabilizing properties in creams, lotions, and soaps.
- it plays a role in energy metabolism as a source of energy for the body.
- it is considered a relatively neutral saturated fat in terms of cardiovascular health compared to other saturated fatty acids.
antibacterial and antimicrobial activity
- stearic acid exhibits mild antimicrobial properties by disrupting the lipid membranes of certain microbes.
- research highlights:
- bacteria:
- fungi: