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115-21-9

Name Ethyltrichlorosilane
CAS 115-21-9
EINECS(EC#) 204-072-6
Molecular Formula C2H5Cl3Si
MDL Number MFCD00000485
Molecular Weight 163.51
MOL File 115-21-9.mol

Chemical Properties

Appearance Ethyl trichlorosilane is a colorless liquid with an irritating odor
Melting point  −106 °C(lit.)
Boiling point  99 °C(lit.)
density  1.238 g/mL at 25 °C(lit.)
vapor pressure  36 hPa (20 °C)
refractive index  n20/D 1.425(lit.)
Fp  57 °F
storage temp.  Store below +30°C.
solubility  soluble in Ether,Benzene
form  liquid
color  colorless
Specific Gravity 1.238
explosive limit 2.68%(V)
Hydrolytic Sensitivity 8: reacts rapidly with moisture, water, protic solvents
Sensitive  moisture sensitive
Uses
Intermediate for silicones.
CAS DataBase Reference 115-21-9(CAS DataBase Reference)
NIST Chemistry Reference Ethyltrichlorosilane(115-21-9)
EPA Substance Registry System 115-21-9(EPA Substance)

Safety Data

Hazard Codes  F,T+
Risk Statements 
R11:Highly Flammable.
R14:Reacts violently with water.
R22:Harmful if swallowed.
R26:Very Toxic by inhalation.
R34:Causes burns.
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
RIDADR  UN 1196 3/PG 2
WGK Germany  1
RTECS  VV4200000
19-21
Autoignition Temperature 385 °C
TSCA  Yes
HS Code  2931 90 00
HazardClass  3.1
PackingGroup  II
Safety Profile
Poison by inhalation and intraperitoneal routes. Moderately toxic by ingestion. A skin and severe eye irritant. A very dangerous fire hazard when exposed to heat, flame, or oxidizers; will react with water or steam to produce heat and toxic and corrosive fumes; can react vigorously with oxidizing materials. To fight fire, use CO2, dry chemical. When heated to decom position it emits highly toxic fumes of Cl and phosgene. See also CHLOROSILANES.
Hazardous Substances Data 115-21-9(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: 1330 mg/kg

Hazard Information

Material Safety Data Sheet(MSDS)

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