An Improved Method for Continuously Determining Concentrations of Gaseous Halogenated Organic Compounds and of Hydrogen Halide in Air or in Other Gases

摘要

1,172,262. Gas analysis. INSTYTUT CHEMII OGOLNEJ. Feb.7, 1967 [Feb.8, 1966], No.5708/67. Heading G1B. A method for continuously determining a gaseous halogenated organic compound or hydrogen halide as a contaminant in air or other gas comprises passing the contaminated air or gas continuously through a furnace filled with a palladium catalyst at about 800‹C., wherein the contaminant is burned to a corresponding hydrogen halide, halogen or both, and the combustion products are passed into contact with a bromide-bromate or iodide-iodate mixture in a tube, or through a washer containing an aqueous solution of the respective salts, so that the combustion products are converted to halogen which is then determined. Preferably the bromidebromate or iodide -iodate solution is contained in a galvanic cell which is used for the determination of the halogen.