74-85-1 Ethene

Name: Ethene
Synonyms: Ethylene(8CI);218W050;Acetene;Bicarburetted hydrogen;Elayl;Olefiant gas;R 1150;
CAS Number:74-85-1
Molecular Formula:C₂H₄
Molecular Weight:28.06
EINECS:200-815-3
Density:0.482 g/cm³
Boiling Point:?104 °C(lit.)
Flash Point:-100 ºC
Safety Description:Suspected carcinogen. A simple asphyxiant. High concentrations cause anesthesia. A common air contaminant. It is phytotoxic. A very dangerous fire hazard when exposed to heat or flame. Moderate explosion hazard when exposed to flame. A flammable gas. To fight fire, stop flow of gas, use CO₂, dry chemical, or fine water spray. Mixtures with aluminum chloride explode in the presence of nickel catalysts, methyl chloride, or nitromethane. Explosive reaction with bromotrichloromethane (at 120°C/51 bar), carbon tetrachloride (25–100°C/30 bar). Explosive reaction with chlorine catalyzed by sunlight or UV light or in the presence of mercury(I) oxide, mercury(II) oxide, or silver oxide. Mixtures with chlorotrifluoroethylene polymerize explosively when exposed to 50 kV gamma rays at 308 krad/hr. Has been involved in industrial accidents. Violent polymerization is catalyzed by copper above 400°C/54 bar. Incompatible with AlCl₃, (CCl₄ + benzoyl peroxide), (bromotrichloromethane + AlCl₃), O₃, CCl₄, Cl₂, NO_x, tetrafluoroethylene trifluorohypofluorite. When heated to decomposition it emits acrid smoke and irritating fumes.
liansport Information:UN 1962