Description

Tetracosamethylcyclododecasiloxane is a high-purity, cyclic siloxane oligomer, also known as Dodecamethylcyclohexasiloxane (D6). This compound is valued for its exceptional thermal stability, low volatility, and inert chemical nature, making it a versatile intermediate and functional fluid. It is primarily sought after by manufacturers in the personal care, electronics, and specialty polymer industries for its role as a carrier, lubricant, and precursor. Our supply ensures consistent quality and reliable availability for your formulation and production needs.

Application

• Personal Care & Cosmetics: Acts as an emollient, carrier, and volatile solvent in antiperspirants, deodorants, skin creams, and hair care products, providing a smooth, non-greasy feel.
• Electronics Manufacturing: Used as a heat transfer fluid and dielectric coolant in high-performance applications due to its excellent thermal stability and electrical insulation properties.
• Silicone Polymer Production: Serves as a key monomer or intermediate in the synthesis of polydimethylsiloxanes (PDMS) and other silicone-based elastomers, resins, and sealants.
• Industrial Lubricants & Release Agents: Functions as a base fluid or additive in specialty lubricants and mold release agents for plastics, rubber, and metalworking.
• Chemical Research & Development: Employed as a standard or reagent in analytical chemistry and materials science for studying siloxane properties and reactions.
• Water Repellent Coatings: Utilized as a component in formulations for creating hydrophobic surface treatments on textiles, glass, and construction materials.

Basic Information

Product Name	Tetracosamethylcyclododecasiloxane
CAS No.	18919-94-3
Molecular Formula	C24H72O12Si12
Molecular Weight	889.80 g/mol
Synonyms	Dodecamethylcyclohexasiloxane; Cyclohexasiloxane, dodecamethyl-; D6; Decamethylcyclopentasiloxane, D5 (common related compound); Hexamethylcyclotrisiloxane (D3) derivative; Cyclic Volatile Methyl Siloxane (cVMS); Siloxane D6; 2,2,4,4,6,6,8,8,10,10,12,12-Dodecamethyl-1,3,5,7,9,11,2,4,6,8,10,12-hexaoxahexasilecane
EINECS	242-704-2

Quality Control

Our Tetracosamethylcyclododecasiloxane is produced and handled under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, identity, and impurity profiles. Our commitment to quality ensures reliable performance for your critical applications.

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 heat, sparks, and open flame. Ensure containers are kept tightly sealed when not in use to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Refractive Index (20°C)	1.398 - 1.402
Density (20°C)	0.950 - 0.970 g/mL
Water Content (KF)	≤ 0.1%

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