Abstract
Hydrogen cyanide (HCN) was produced by flameless combustion of dried stripped tobacco leaves, and was adsorbed directly by chloramine-T, which penetrated on a filter pad. Both amounts of breakthrough HCN and HCN on the filter pad were measured. The concentration of HCN was produced steadily at 0.7-0.8 mg HCN per dm3 of smoke. At least 60% of HCN produced was adsorbed on the filter pad. For the given 245 cm3 of smoke with the flow rate of 17.5 cm3 per second, the amount of HCN produced was reduced to below 0.05 mg by adding at least 20 mg of chloramine-T. Direct adsorption of HCN on chloramine-T was chemisorption. Almost 90% of the
amount of HCN produced was adsorbed irreversibly on filter pad containing 45 mg of chloramine-T.
Keywords