Note: Ingredients listed on restricted chemical lists
EC/CAS
107-46-0
Name of the chemical
Hexamethyldisiloxane
Concentration
>= 90 - <= 100
General Information
Version
6.12
Revision date
2025-11-06
Product name
Hexamethyldisiloxane
CAS No.
107-46-0
1.2.1 Relevant identified uses
Laboratory chemicals, Synthesis of substances
1.2.2. Uses advised against
The product is being supplied under the TSCA R&D Exemption
Emergency telephone
800-424-9300, +1-703- 527-3887
Icons in SDS
Company Information
company name
Sigma-Aldrich Inc
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H225, H410
Hazard statements
Code
Statements
H225
Highly Flammable liquid and vapour
Section 2
SECTION 2: Hazards identification
Long term hazards
Category 1 aquatic hazard
Other hazards
None known
Signal word
Danger
Hazard statements
H225 Highly flammable liquid and vapour. H410 Very toxic to aquatic life with long lasting effects.
Prevention
P210 Keep away from heat/ sparks/ open flames/ hot surfaces. No smoking. P233 Keep container tightly closed. P240 Ground/bond container and receiving equipment. P241 Use explosion-proof electrical/ ventilating/ lighting equipment. P242 Use only non-sparking tools. P243 Take precautionary measures against static discharge. P273 Avoid release to the environment. P280 Wear protective gloves/ eye protection/ face protection.
Response
P303 + P361 + P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/ shower. P370 + P378 In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish. P391 Collect spillage.
Storage
P403 + P235 Store in a well-ventilated place. Keep cool.
Disposal
P501 Dispose of contents/ container to an approved waste disposal plant.
2.1 Classification of the substance or mixture
(29 CFR 1910.1200) Hazards for the product as supplied Flammable liquids : Category 2 Short-term (acute) : Category 1 aquatic hazard Long-term (chronic) : Category 1 aquatic hazard Other hazards
