Description

C20-24 Alkyl Dimethicone is a high-performance organomodified silicone fluid, specifically a long-chain alkyl-modified dimethicone. This unique chemical structure provides exceptional compatibility with organic oils and waxes, delivering superior spreading, lubrication, and water-repellent properties. It is a critical ingredient for formulators in the personal care, cosmetics, and industrial lubricant sectors seeking to enhance product feel, stability, and performance. The compound is identified by CAS No. 200074-76-6.

Application

• Personal Care & Cosmetics: Acts as a premium emollient and conditioning agent in color cosmetics, sunscreens, skin creams, and hair care products to impart a luxurious, non-greasy, silky-smooth feel.
• Antifoaming Agent: Used in industrial processes, including petroleum refining, wastewater treatment, and chemical manufacturing, to control and suppress foam.
• Lubricants & Release Agents: Serves as a high-performance additive in specialty lubricants, mold release agents for plastics and rubber, and fiber lubricants due to its excellent thermal stability and low surface tension.
• Surface Treatment: Provides durable water repellency and enhanced slip properties when applied to textiles, paper, leather, and various non-porous surfaces.
• Plastics & Rubber Additive: Improves processing, acts as an internal lubricant, and enhances surface properties in polymer compounds.
• Pigment & Filler Treatment: Used to coat inorganic pigments and fillers (e.g., silica, talc) to improve their dispersion in organic matrices and reduce viscosity.

Basic Information

Product Name	C20-24 Alkyl Dimethicone
CAS No.	200074-76-6
Molecular Formula	Typically proprietary blend; based on polydimethylsiloxane with C20-24 alkyl side chains.
Molecular Weight	Varies by degree of polymerization. Contact for details.
Synonyms	C20-24 Alkyl Dimethicone; Alkyl (C20-24) Modified Dimethicone; Poly[oxy(dimethylsilylene)], α-[docosyltetracosyl]-ω-methyl-; Docosyltetracosyl Dimethicone; Long-chain Alkyl Dimethicone; Silicone Fluid AK 35000 (trade name example); Polysiloxane, C20-24 alkyl methyl; Alkyl-modified silicone oil (C20-24)
EINECS	Contact for details.

Quality Control

Our C20-24 Alkyl Dimethicone is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in viscosity, refractive index, alkyl content, and purity. Certificates of Analysis (COA) documenting key specifications 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/59-77°F). Keep away from strong oxidizing agents and open flames. For long-term storage, consider using under an inert atmosphere (e.g., nitrogen blanket) to prevent oxidation.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Viscosity @ 25°C	Specification available upon request
Refractive Index @ 25°C	Specification available upon request
Specific Gravity @ 25°C	Specification available upon request
Alkyl Content (C20-24)	Specification available upon request
Water Content	< 0.1% (by Karl Fischer)

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