Dichlorophenyltrichlorosilane

  • Trichloro(dichlorophenyl)silane
Formula
C6H3Cl5Si
Structure
Description
Straw-colored liquid. Pungent.
Uses
Intermediate for silicones.

Registry Numbers and Inventories.
CAS
27137-85-5
EC (EINECS/ELINCS)
248-254-3
RTECS
VV3540000
RTECS class
Other
UN (DOT)
1766
Beilstein/Gmelin
NA
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C6H3Cl5Si
Formula mass
280.43
Boiling point, °C
260
Density
1.562 g/cm3 (20 C)

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Use water spray to knock-down vapors. Do not use water on material itself. Neutralize spilled material with crushed limestone, soda ash, or lime.
Stability
No data.

Fire.
Flash Point,°C
146
Fire fighting
Keep unnecessary people away; isolate hazard area and deny entry. Stay upwind; keep out of low areas. Wear self-contained (positive pressure if available) breathing apparatus and full protective clothing. Move container from fire area if you can do so without risk. Spray cooling water on containers that are exposed to flames until well after fire is out. Do not use water on material itself. Use spray to absorb vapors.This material may react violently with water. Extinguish with dry chemical, carbon dioxide, water spray, fog, or foam. Also dry sand may be used.
Fire potential
This material may burn but does not ignite readily.
Hazards
Flammable/poisonous gases may accumulate in tanks and hopper cars. This material may ignite combustibles (wood, paper, oil, etc.). The compound is a slight fire hazard when exposed to heat or flame. It is decomposed by moisture or water to hydrochloric acid with the evolution of heat.
Combustion products
Fire will produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
   Ingestion
See Inhalation.
   Inhalation
TOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns, or death.
   Skin
See Inhalation.
   Eyes
See Inhalation.

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.
   Skin
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
   Eyes
Immediately flush with running water for at least 20 minutes.

Transport.
UN number
1766
Response guide
Hazard class
8
Packing Group
II
 
USCG CHRIS Code
TYS
 
Std. Transport #
4934225