Description

Stearyl Stearate is a long-chain fatty acid ester derived from stearic acid and stearyl alcohol, known for its excellent emollient and lubricating properties. This high-purity waxy solid is valued for its ability to provide a smooth, non-greasy feel and enhance product texture and stability. It is a critical ingredient for formulators in the cosmetics, personal care, and pharmaceutical industries, where consistent quality and performance are paramount.

Application

• Cosmetic & Personal Care Formulations: Acts as a primary emollient, viscosity modifier, and opacifying agent in creams, lotions, lipsticks, and makeup products.
• Pharmaceutical Topicals: Used as a non-irritating base and consistency regulator in ointments, salves, and dermatological creams.
• Industrial Lubricants & Release Agents: Serves as a lubricant in plastic processing and as a mold release agent due to its excellent slip properties.
• Textile & Fiber Processing: Functions as a softening agent and lubricant for synthetic fibers and yarns.
• Food-Grade Applications: Employed as a release agent and lubricant in food processing equipment where incidental contact is possible (subject to specific grade availability).
• Polishes & Waxes: Imparts gloss and smoothness to automotive, furniture, and floor polish formulations.

Basic Information

Product Name	Stearyl Stearate
CAS No.	2778-96-3
Molecular Formula	C₃₆H₇₂O₂
Molecular Weight	536.96 g/mol
Synonyms	Octadecyl octadecanoate; Octadecyl stearate; Stearic acid stearyl ester; n-Octadecyl stearate; Cetyl-stearyl stearate; SS; Ester of stearyl alcohol and stearic acid
EINECS	220-476-5

Quality Control

Our Stearyl Stearate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and physical constants. We provide full traceability and Certificates of Analysis (COA) are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	White to off-white waxy solid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Acid Value	≤ 2.0 mg KOH/g
Saponification Value	100 - 110 mg KOH/g
Iodine Value	≤ 2.0 g I₂/100g
Melting Point	55 - 60 °C

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