1,1-Difluoroethene

CAS RN:75-38-7

Other Properties

Conversion factors: 1 mg/L is equivalent to 382 ppm and 1 ppm is equivalent to 2.62 mg/cu m at 25 deg C, 760 mm Hg
Critical density = 417 kg/cu m; Heat of formation = -345.2 kJ/mol at 25 deg C; Heat of polymerization = -474.21 kJ/mol at 25 deg C; explosive limits = 5.8-20.3 vol % in air
Critical molar volume: 154 cu cm/mol
Dipole moment = 1.3893
Explosive limits in air 5.5-21%
Heat of evaporation = 13189 J/mol at -40 deg C
Liquid molar volume = 0.055194 cu m/kmol; Vapor pressure = 3X10+4 mm Hg at 25 C (calculated from experimentally derived coefficients)
Sensitive to heat or stabilizers; alkyl boron and alkyl hyponitrite compounds, among others, initiate polymerization
Henry's Law constant = 3.79X10-1 atm-cu m/mol at 25 deg C (est)
Hydroxy radical reaction rate constant = 2.10X10-12 cu cm/molec-sec at 23 deg C
Find more information on this substance at: Hazardous Substances Data Bank , TOXNET , PubMed