Chlorine analyzing apparatus

The present invention relates to a chlorine analyzing apparatus comprising mainly a reaction tube ( 1 ) of a double tube structure comprising an inner tube ( 11 ) for receiving a sample and an outer tube ( 14 ) for recovering hydrogen chloride; an electric furnace ( 9 ) having a reaction tube insertion hole into which the reaction tube is inserted, which is equipped with a heater disposed around the reaction tube insertion hole; and a titration cell ( 3 ) for receiving acetic acid as an electrolyte and subjecting hydrogen chloride withdrawn from the reaction tube ( 1 ) to coulometric titration, said analyzing apparatus further comprising a deodorization tube ( 4 ) disposed on a rear stage side of the titration cell ( 3 ) for thermally decomposing a vapor of acetic acid discharged from the titration cell, which is fitted into the electric furnace ( 9 ).