Methyltrifluorosilane

Formula
CH3F3Si
Structure

Registry Numbers and Inventories.
CAS
373-74-0
EC (EINECS/ELINCS)
206-770-6
R 12 34
S 16 26 36/37/39 45
UN (DOT)
3308
Beilstein/Gmelin
1732819
Beilstein Reference
4-04-00-04210
Canada DSL/NDSL
NDSL
US TSCA
Listed

Properties.
Formula
CH3F3Si
Formula mass
100.12
Melting point, °C
-73
Boiling point, °C
-30
Vapor pressure, mmHg
4900 (25 C)
Solubility in water
Insoluble
Heat of vaporization
23.7 kJ/mol

Hazards and Protection.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Do not touch or walk through spilled material. Fully encapsulating, vapor protective clothing should be worn for spills and leaks with no fire. Stop leak if you can do it without risk or turn leaking containers so that gas escapes rather than liquid. Do not direct water at spill or source of leak. Isolate area until gas has dispersed.

Fire.
Flash Point,°C
-68
Fire fighting
Small Fires: Dry chemical or carbon dioxide. Large Fires: Water spray, fog or regular foam.
Hazards
Vapors from liquefied gas are initially heavier than air and spread along ground.
Combustion products
Fire will produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
   Inhalation
May cause irritation. May be fatal if inhaled.
   Skin
May cause irritation. May be fatal if absorbed through the skin. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite.
   Eyes
See Skin.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Effects may be delayed.
   Skin
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. In case of contact with liquefied gas, thaw frosted parts with lukewarm water. Effects may be delayed.
   Eyes
Immediately flush with running water for at least 20 minutes. Effects may be delayed.

Transport.
UN number
3308
Response guide