Accession Number : AD0752511

Title :   The Determination of Hydrogen Sulfide in Stack Gases, Iodometric Titration after Sulfite Removal.

Descriptive Note : Final rept.,

Corporate Author : ENVIRONMENTAL HEALTH LAB MCCLELLAN AFB CALIF

Personal Author(s) : Robles,Edward G.

Report Date : JAN 1968

Pagination or Media Count : 9

Abstract : The determination of hydrogen sulfide in effluents from coal-fired furnaces and incinerators is complicated by the presence of sulfur oxides (which form acids). Organic compounds also may interfere with or prevent the formation of the cadmium sulfide precipitate or give false positive results because of reaction with iodine. The report presents a technique in which these effects are overcome by collecting the gases in a strongly basic medium and separating the cadmium sulfide by filtration. Subsequent analysis is preformed by visual comparison or iodometrically depending on the quantity of cadmium sulfide present. (Author)

Descriptors :   (*GAS ANALYSIS, *SULFIDES), (*AIR POLLUTION, SULFIDES), HYDROGEN COMPOUNDS, COMBUSTION PRODUCTS, CADMIUM COMPOUNDS, CHEMICAL PRECIPITATION, VOLUMETRIC ANALYSIS, SAMPLERS

Subject Categories : Inorganic Chemistry
      Air Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE