Stearic Acid (CAS 57-11-4) – Versatile Fatty Acid

🧪 CAS Number: 57-11-4

🌟 Product Description

Stearic acid is a saturated, long-chain fatty acid obtained from natural fats and vegetable sources. It appears as a white solid and is widely used in soap, cosmetics, plastics, rubber, and textile industries. The 18-65, 18-38, and 18-43 grades differ in acid values and purity, making them suitable for various applications.

🏭 Applications

🧼 Surfactant in soap and detergent production

💄 Emulsifier in cosmetics and personal care products

🛡️ Hardening agent in waxes, polishes, and coatings

🔩 Processing aid in rubber and plastics

👕 Softening agent in textile processing

📊 Physical & Chemical Properties

Appearance: White solid flakes or powder

Odor: Slight fatty odor

Formula: C18H36O2

Molecular Weight: 284.48 g/mol

Melting Point: 69–70 °C

Solubility: Insoluble in water, soluble in organic solvents

⚠️ Storage & Safety

Store in cool, dry, and well-ventilated areas. Keep away from heat and open flames. Avoid skin and eye contact; use suitable protective equipment.

🔑 Keywords

stearic acid, CAS 57-11-4, fatty acid, emulsifier, soap ingredient, cosmetic ingredient

📛 Other Names

Octadecanoic Acid, Stearate