Tetraethylsilane

  • Tetraethylsilicon
Formula
C8H20Si
Structure
Description
Colorless clear liquid

Registry Numbers and Inventories.
CAS
631-36-7
EC (EINECS/ELINCS)
211-155-0
S 16 23 24/25
RTECS
VV5500000
RTECS class
Other
UN (DOT)
1993
Beilstein/Gmelin
1732768
Beilstein Reference
4-04-00-03895
Canada DSL/NDSL
NDSL
US TSCA
Listed

Properties.
Formula
C8H20Si
Formula mass
144.37
Melting point, °C
-8
Boiling point, °C
150 - 153
Vapor pressure, mmHg
4.4 (25 C)
Density
0.8341 g/cm3 (0 C)
Solubility in water
Insoluble
Viscosity
0.86 cp (0 C)
Refractive index
1.4268 (20 C)
Partition coefficient, pKow
4.96
Heat of fusion
13.0 kJ/mol
Heat of vaporization
39.8 kJ/mol
Heat of combustion
-6610 kJ/mol

Hazards and Protection.
Storage
Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Flammables-area.
Handling
Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Protection
Wear appropriate protective eyeglasses or chemical safety goggles, protective gloves and clothing to prevent 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 temperatures and pressures.
Incompatibilities
Strong oxidizing agents, strong acids.
Decomposition
Carbon monoxide, carbon dioxide, silicon oxide.

Fire.
Flash Point,°C
26
Fire fighting
Wear approved SCBA in full pressure-demand and full protective gear. Will burn if involved in a fire. Use foam, dry chemical, or carbon dioxide.

Health.
Exposure effects
   Ingestion
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.
   Inhalation
Causes respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
   Skin
Causes skin irritation.
   Eyes
Causes eye irritation.

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 lids. Get medical aid.

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