Stearic Acid - High Purity - Octadecanoic acid

Stearic Acid

Synonyms: Octadecanoic acid,

Stearic acid is a saturated long-chain fatty acid, naturally found in animal fats and vegetable oils — especially shea butter, cocoa butter, coconut oil, and palm oil. A high grade Stearic Acid. It can be used as an emulsifier and cleansing agent in personal care products.

INCI - Stearic Acid

What It's Used For:

In Cosmetics and Personal Care:

• Emulsifier: Helps keep oil and water from separating in creams and lotions.

• Thickener: Adds body and structure to formulations.

• Emollient: Softens and smooths the skin.

• Pearlizing agent: Adds a silky, pearly appearance to shampoos and body washes.

• Stabilizer: Helps products maintain consistency and shelf life.

Common in:

• Creams and lotions

• Shaving foams

• Soaps

• Makeup products

In Soaps:

Stearic acid is a key ingredient in bar soap, especially in combination with lye (sodium hydroxide). It helps create:

• A harder bar

• A creamy, stable lather

• A longer-lasting product

In Industrial Applications:

• Lubricants and release agents

• Candle making: Used to harden wax and improve burn time

• Rubber and plastics: Acts as a processing aid

• Pharmaceuticals: As a coating or binding agent in tablets

In Formulating:

• Usage rate in cosmetics: Typically 1–25%, depending on the application

• Often paired with emulsifying waxes or fatty alcohols like cetyl or cetearyl alcohol

SPECIFICATION

• CAS No.: 67701-03-5
  
• Molecular Weight: 284.48 g/mol
• Chemical Formula: C18H36O2
• Appearance: waxy white solid
• Solubility: insoluble in water (3mg/L)
• S.G. 0.847 g/ml at 20c
• Melting Point: 55-66 °C
• Boiling Point: 383 °C