CCl(4) was decompd. in quartz reactor under pulsed spark discharge condition both in Ar and in O(2) (atm. pressure, voltage 12 kV, pulse frequency 30 Hz, brass-W, duralumin -W or Pt electrodes, initial CCl(4) conc. about 2%, gas flow rate 2.95 L/h) to Cl(2) and solid C, as well as traces of C(2)Cl(4) and C(2)Cl(6). In presence of O(2), the formation of C oxides and COCl(2) (traces) was obsd. The conversion degree higher than 90% was achieved in all cases.