Description

Stearic Acid CAS NO 57-11-4 is a saturated long-chain fatty acid, serving as a fundamental oleochemical building block and versatile industrial intermediate. Its unique combination of hydrophobic properties, lubricity, and reactivity makes it indispensable for modifying the physical characteristics of countless formulations. This essential chemical is widely utilized across the personal care, plastics, rubber, food, and pharmaceutical industries for its stabilizing, thickening, and release agent properties.

Application

• Personal Care & Cosmetics: Primary ingredient in soaps (sodium stearate), creams, lotions, and deodorants, acting as an emulsifier, thickener, and opacifying agent.
• Plastics & Polymer Industry: Crucial internal and external lubricant and mold release agent in PVC processing, polyolefins, and ABS resins.
• Rubber Manufacturing: Acts as a vulcanization activator and processing aid, improving dispersion of fillers and facilitating mold release.
• Food Industry (Food Grade): Used as a release agent, binder, and emulsifier (e.g., in chewing gum, confectionery) and as a component in food-grade lubricants.
• Pharmaceuticals: Employed as a tablet and capsule lubricant, and as an excipient in ointments and suppositories.
• Candles & Waxes: Used to harden candles and modify the melting point and texture of various wax blends.
• Metalworking & Textiles: Serves as a lubricant in metal drawing and forging, and as a softening agent in textile finishing.
• Chemical Synthesis: Key raw material for producing stearates (e.g., zinc, calcium, magnesium stearates), esters, and amides.

Basic Information

Product Name	Stearic Acid
CAS No.	57-11-4
Molecular Formula	C18H36O2
Molecular Weight	284.48 g/mol
Synonyms	Octadecanoic Acid; C18:0 Fatty Acid; n-Octadecanoic Acid; Stearophanic Acid; Glycon; Hydrofol Acid 1895; Industrene 4516; Hystrene 9718; Pristerene; Century 1240; Tego Acid S; Kortacid 1895; Emersol 120; Loxiol G 20; IUPAC: Octadecanoic acid
EINECS	200-313-4

Quality Control

Our Stearic Acid is produced under a stringent quality management system. We offer various grades, including Industrial, Food (FCC), and Pharmaceutical (USP/EP) specifications, ensuring compliance with relevant industry standards such as REACH, FDA (where applicable), and ISO. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, iodine value, acid value, and other critical parameters, available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat sources and incompatible materials such as strong oxidizing agents and strong bases. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F).

Specification

Item	Specification
Appearance	White flakes or beads
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0%
Iodine Value (Wijs)	≤ 2.0 g I2/100g
Acid Value	196 - 205 mg KOH/g
Saponification Value	197 - 206 mg KOH/g
Melting Point	54 - 69°C
Color (APHA)	≤ 30
Water Content (KF)	≤ 0.2%
Ash Content	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.