Rate constants of the reaction of NO3 with CH3I measured with use of cavity ring-down spectroscopy.
We have applied cavity ring-down spectroscopy to a kinetic study of the reaction of NO3 with CH3I in 20-200 Torr of N2 diluent at 298 K. The rate constant of the reaction of NO3 + CH3I was determined to be (4.1 +/- 0.2) x 10(-13) cm3 molecule(-1) s(-1) in 100 Torr of N2 diluent at 298 K and is pressure-independent. This reaction may significantly contribute to the formation of reactive iodine compounds in the atmosphere.
Nakano
Yukio
Y
Faculty of Information Sciences, Hiroshima City University, Hiroshima 731-3194, Japan. yukio_n@im.hiroshima-cu.ac.jp
Ishiwata
Takashi
T
Kawasaki
Masahiro
M