HYDROGEN CYANIDE DETECTOR AND HYDROGEN CYANIDE DETECTING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a detector capable of detecting hydrogen cyanide.;SOLUTION: This hydrogen cyanide detector 1 has an absorbing pipe 10 and a detection pipe 30 and a carrier (absorber 15), to which an iodate is added, is arranged in the absorbing pipe 10 while a carrier (discoloration member 35), to which mercuric chloride and an indicator are added, is arranged in the detection pipe 30. Since the hydrogen sulfide gas in a sample gas is decomposed and removed by the absorber 15 when passing through the absorbing pipe 10, hydrogen cyanide reacts with mercuric chloride in the detection pipe 30 to produce chlorine but not hydrogen sulfide. Accordingly, the amount of hydrogen cyanide can be accurately measured without being obstructed by hydrogen sulfide in the sample gas.;COPYRIGHT: (C)2008,JPO&INPIT