Title: Cryofluorane
CAS Registry Number: 76-14-2
CAS Name: 1,2-Dichloro-1,1,2,2-tetrafluoroethane
Trademarks: Freon 114 (DuPont); Frigen 114 (Hoechst); Arcton 114 (ICI)
Molecular Formula: C2Cl2F4
Molecular Weight: 170.92
Percent Composition: C 14.05%, Cl 41.48%, F 44.46%
Line Formula: ClCF2CClF2
Literature References: Prepn: Henne, Org. React. 2, 49 (1944).
Properties: Colorless, practically odorless, noncorrosive, nonirritating, nonflammable gas. Faint, ether-like odor in high concentrations. d0liq 1.5312. mp -94°. bp760 4.1°. nD0 1.3092. Critical temp 145.7°; crit pressure 474 lb/sq in. abs. Practically insol in water. Sol in alcohol, ether. Absorbs less than 0.0025% water. Has little, if any, anesthetic or toxic effect on humans, but toxic substances may be formed on contact with a flame or hot metal surface.
Melting point: mp -94°
Boiling point: bp760 4.1°
Index of refraction: nD0 1.3092
Density: d0liq 1.5312
CAUTION: Potential symptoms of overexposure are irritation of respiratory system; asphyxia; cardiac arrhythmias, cardiac arrest; direct contact with liquid may cause frostbite. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 102. Note: Consult latest Government regulations on use as aerosol propellant.
Use: Refrigerant, aerosol propellant. |