1,1-bis(Trichlorosilylmethyl)ethylene

  • Silane, (2-methylene-1,3-propanediyl)bis[trichloro-
  • 1,5-Disilapentane, 1,1,1,5,5,5-hexachloro-3-methylene-
Formula
C4H6Cl6Si2
Structure
Description
Light yellow liquid. Acrid odor.

Registry Numbers and Inventories.
CAS
78948-04-6
Beilstein/Gmelin
1783571
Beilstein Reference
4-04-00-04268

Properties.
Formula
C4H6Cl6Si2
Formula mass
322.98
Boiling point, °C
239 - 240 (722 torr)
Density
1.4052 g/cm3 (20 C)
Solubility in water
Insoluble
Refractive index
1.4931 (20 C)

Hazards and Protection.
Storage
Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Corrosives area. Store under an inert atmosphere.
Handling
Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing.
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.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Oxidizing agents, acids, bases, alcohols, amines.
Decomposition
Hydrogen chloride, carbon monoxide, carbon dioxide, silicon oxide.

Fire.
Flash Point,°C
81
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Water Reactive. Material will react with water and may release a flammable and/or toxic gas. Combustible Liquid. Extinguishing media: Use foam, dry chemical, or carbon dioxide. DO NOT USE WATER!

Health.
Exposure effects
   Ingestion
Causes gastrointestinal tract burns. The toxicological properties of this substance have not been fully investigated.
   Inhalation
Causes chemical burns to the respiratory tract. The toxicological properties of this substance have not been fully investigated.
   Skin
Causes skin burns.
   Eyes
Causes eye burns.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
   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 immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.