اسید استئاریک

Stearic Acid is a saturated long-chain fatty acid with the chemical formula C₁₈H₃₆O₂. It is widely used in pharmaceutical and laboratory applications as an emulsifier, lubricant, and stabilizer.

🏭⚗️ Production
Stearic acid is produced from natural fats and oils, such as palm or coconut oil, through hydrolysis and purification processes. The resulting product is a white, waxy solid suitable for pharmaceutical formulations, topical preparations, and laboratory use.

🔬 Properties
Stearic acid is a white, odorless, waxy solid that is insoluble in water but soluble in alcohol, ether, and chloroform. It has a melting point of 69–70°C and acts as an emulsifying and thickening agent. Chemically, it is stable and compatible with a wide range of pharmaceutical excipients.

🧪 Applications
In pharmaceutical formulations, stearic acid is used as an excipient in tablets, capsules, and ointments to improve texture, act as a lubricant, and stabilize emulsions. In laboratory settings, it is employed in the preparation of emulsions, lipid-based formulations, and as a component in surfactant studies. Stearic acid also finds use in cosmetic and personal care product formulations.

⚠️ Safety
Stearic acid is generally recognized as safe for pharmaceutical and laboratory use. It is non-toxic and non-irritant under standard handling conditions. The substance should be stored in a cool, dry place in tightly sealed containers to maintain its quality.