SoleChem

Dodecamethylcyclohexasiloxane

CAS
540-97-6
EC
208-762-8
Mol. Weight
444.92 g/mol

Description

Dodecamethylcyclohexasiloxane (CAS 540-97-6), commercially recognized as Cyclomethicone 6, is a cyclic silicone fluid used across personal care, coatings, and industrial applications. It functions as a low-viscosity carrier and surface-conditioning agent.

This chemical delivers essential lubricity and slip to finished formulations. In personal care manufacturing, it acts as a volatile carrier for active ingredients and conditioning agents in skin creams, hair serums, and antiperspirants.

The fluid is designed to evaporate cleanly without leaving a residue. Coatings and release agent formulators incorporate it to improve surface wetting and reduce friction on substrates where silicone-based lubrication is required.

Automotive and industrial lubricant producers use it as a base fluid or diluent in specialty greases and mold-release compounds. It provides consistent performance in high-friction environments and specialized mechanical applications.

Adhesive and sealant manufacturers blend it into silicone elastomer systems to control viscosity during processing. This helps improve the final surface finish on cured products and ensures easier application for industrial users.

The product is supplied as a clear, low-viscosity liquid in drum and IBC quantities. It is available in cosmetic-grade and technical-grade specifications to meet various manufacturing needs and regulatory standards.

The cosmetic-grade material meets purity requirements for personal care end-use. Buyers should confirm cyclic siloxane content and D6 purity levels against their formulation or regulatory requirements before sourcing.

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Physical Properties

Melting Point -3 °C
Boiling Point 245 °C
Density 0.9677 g/cm³ @ Temp: 420 °C
Flash Point >76°C
Color Colourless
Odor at 100.00?%. odorless
Form liquid
Water Solubility 5.1μg/L at 23℃
Vapor Pressure 4.7Pa at 25℃
Refractive Index 1.4015
Log P 8.87 at 23.6℃

Safety & Handling (Learn More)

Warning
Hazard Statements
H227 Combustible liquid
H413 May cause long lasting harmful effects to aquatic life
Precautionary Statements
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P403 Store in a well-ventilated place.
P501 Dispose of contents/container in accordance with local regulations.
P370+P378 Use … for extinction.

Trade & Regulatory

HS Code 29319090
UN Number 1993
Packing Group III
Storage Class 10 - Combustible liquids
WGK (Germany) 3

Documentation

Other Names

Cyclohexasiloxane, dodecamethyl-|Cyclomethicone 6|XHK3U310BA|XIAMETER PMX-0246|RefChem:590100|Cyclohexasiloxane, 2,2,4,4,6,6,8,8,10,10,12,12-dodecamethyl-|2,2,4,4,6,6,8,8,10,10,12,12-Dodecamethylcyclohexasiloxane

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