Stearic Acid

CAS# 57-11-4

Product Description

Stearic acid, a saturated fatty acid, finds various industrial applications owing to its unique properties.


Stearic Acid




Octadecanoic Acid; Stearophanic acid


Typical Characteristics


White powder

Boiling point

361 °C


0.845 g/cm3

Flash Point

113 °C

Melting point

67-72 °C

Molecular Weight



Mild fatty



Refractive index


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We Offer Stearic Acid
in various grades

A few of the grades available are listed below:

Stearic Acid used in many
industry applications

Stearic acid, a saturated fatty acid, finds various industrial applications owing to its unique properties. Here's a list of some of its industrial uses:

  1. Personal Care Products: Stearic acid is widely used in the production of personal care products, such as soaps, shampoos, lotions, and cosmetics, where it acts as an emulsifier, thickener, and stabilizer to improve product texture and stability.
  2. Pharmaceuticals: It serves as an excipient in pharmaceutical formulations, including tablets, capsules, and topical creams, where it functions as a lubricant, binder, and controlled-release agent to improve drug delivery and dosage form characteristics.
  3. Cosmetics: Stearic acid is utilized in the formulation of cosmetics, such as lipsticks, creams, and foundations, as a thickening agent, emollient, and opacifier to enhance product spreadability, moisturization, and coverage.
  4. Food Additives: It is used as a food additive in various food products, including confectionery, baked goods, and dairy products, where it functions as an emulsifier, stabilizer, and release agent to improve texture, shelf life, and mouthfeel.
  5. Plastic and Rubber Industry: Stearic acid is employed as a processing aid and lubricant in the production of plastics, rubbers, and elastomers, where it improves melt flow, mold release, and surface finish during processing and molding operations.
  6. Surfactants: It serves as a surfactant and wetting agent in industrial cleaning products, detergents, and emulsions, where it helps to reduce surface tension, enhance wetting, and improve cleaning performance on various surfaces.
  7. Textile Industry: Stearic acid is used in the textile industry for textile sizing, finishing, and lubrication applications, where it imparts stiffness, smoothness, and antistatic properties to yarns, fabrics, and fibers.
  8. Candle Making: It is employed in the production of candles as a hardening agent and wax modifier to increase the melting point, hardness, and burn time of the candles, ensuring better performance and stability.
  9. Rubber Industry: Stearic acid is utilized as a vulcanization activator and processing aid in the rubber industry, where it improves the dispersion of fillers and accelerators, reduces compound viscosity, and enhances the mechanical properties of rubber products.
  10. Metal Processing: It is used as a lubricant and mold release agent in metal processing operations, such as metal forming, stamping, and casting, where it reduces friction, prevents galling, and facilitates part ejection from molds and dies.