Kinetics of Isothermal Pyrolysis of Iodomethanes in the Gas Phase

The limiting step of the isothermal pyrolysis of gaseous iodomethane (CH3I → 3/4CH4 + 1/2I2 + 1/(4n)C n ) and diiodomethane (CH2I2 → 1/2CH4 + I2 + 1/(2n)C n ) are the reactions 2CHI → C2 + 2HI and 2CI2 → C2 + 2I2, respectively. The rate constants of these reactions were determined.