General Information
Version
6.11
Revision date
2025-04-30
Product name
Hexamethyldisilane
CAS No.
1450-14-2
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, H317, H319, H335
Hazard statements
Code
Statements
H225
Highly Flammable liquid and vapour
Section 2
SECTION 2: Hazards identification
Other hazards
None known
Signal word
Danger
Hazard statements
H225 Highly flammable liquid and vapor. H317 May cause an allergic skin reaction. H319 Causes serious eye irritation. H335 May cause respiratory irritation.
Prevention
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P233 Keep container tightly closed. P240 Ground and bond container and receiving equipment. P241 Use explosion-proof electrical/ ventilating/ lighting/ equipment. P242 Use non-sparking tools. P243 Take action to prevent static discharges. P261 Avoid breathing mist or vapors. P264 Wash skin thoroughly after handling. P271 Use only outdoors or in a well-ventilated area. P272 Contaminated work clothing must not be allowed out of the workplace. P280 Wear protective gloves/ protective clothing/ eye protection/ face protection.
Response
P303 + P361 + P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/ shower. P304 + P340 + P312 IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/ doctor if you feel unwell. P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P333 + P313 If skin irritation or rash occurs: Get medical advice/ attention. P337 + P313 If eye irritation persists: Get medical advice/ attention. P370 + P378 In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish.
Storage
P403 + P233 Store in a well-ventilated place. Keep container tightly closed. P403 + P235 Store in a well-ventilated place. Keep cool. P405 Store locked up.
Disposal
P501 Dispose of contents/ container to an approved waste disposal plant.
2.1 Classification of the substance or mixture
(29 CFR 1910.1200) Flammable liquids : Category 2 Eye irritation : Category 2A Skin sensitization : Category 1 Specific target organ : Category 3 (Respiratory system) toxicity - single exposure Other hazards
