1-Trimethylsilyloxy-1,3-butadiene

  • (1,3-Butadienyloxy)trimethylsilane
  • 1-(Trimethylsiloxy)butadiene
  • (Butadienyloxy)trimethylsilane
  • 1-[(Trimethylsilyl)oxy]-1,3-butadiene
  • 1-(Trimethylsiloxy)-1,3-butadiene
  • 1-[(Trimethylsilyl)oxy]butadiene
Formula
C7H14OSi
Structure
Description
Clear, colorless to straw liquid. Mild odor.

Registry Numbers and Inventories.
CAS
6651-43-0
UN (DOT)
1993
Beilstein/Gmelin
1902024
New Zealand
Listed

Properties.
Formula
C7H14OSi
Formula mass
142.27
Boiling point, °C
131
Vapor density (air=1)
>1
Density
0.8237 g/cm3 (20 C)
Solubility in water
Insoluble
Refractive index
1.4472 (20 C)

Hazards and Protection.
Storage
Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Refrigerator/flammables.
Handling
Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Protection
Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Remove all sources of ignition. Use a spark-proof tool.
Stability
Stable under normal shipping and handling conditions.
Incompatibilities
Strong oxidizing agents, strong acids, peroxides.
Decomposition
Carbon monoxide, carbon dioxide, silicon oxide.

Fire.
Flash Point,°C
25
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire. Containers may explode if exposed to fire. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.
Fire potential
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
   Ingestion
May cause irritation of the digestive tract. May be harmful if swallowed.
   Inhalation
Causes respiratory tract irritation. May be harmful if inhaled.
   Skin
Causes skin irritation. May be harmful if absorbed through the skin. Effects may be delayed. May cause contact dermatitis.
   Eyes
Causes eye irritation. May cause conjunctivitis. Contact with the eyes may cause corneal damage.

First aid
 
   Ingestion
Get medical aid. Wash mouth out with water.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
1993
Response guide
Hazard class
3
Packing Group
I; II; III