G. Nicoll et Js. Francisco, CARBON-ATOM INITIATED DEGRADATION OF CARBON-TETRACHLORIDE IN THE PRESENCE OF MOLECULAR-OXYGEN - A PRODUCT AND MECHANISTIC STUDY, Environmental science & technology, 32(20), 1998, pp. 3200-3206
This paper reports an investigation of the gas-phase reaction of atomi
c carbon with carbon tetrachloride in the presence of molecular oxygen
. It is demonstrated that carbon tetrachloride can he oxidatively degr
aded by this method. Results from FT-IR and GC/MS studies suggest that
the major products from the reaction are phosgene and carbon dioxide.
The initial step involves breaking the carbon-chlorine bond as a resu
lt of the reaction of atomic carbon with carbon tetrachloride. Laser-i
nduced fluorescence studies have shown the presence of CCl as an inter
mediate produced from this reaction. A tentative mechanism is proposed
to describe the details of the chemistry.