Determination of Ozone in Air by Neutral and Alkaline Iodide Procedures
| Autor: | B. E. Saltzman, D. H. Byers |
|---|---|
| Rok vydání: | 1958 |
| Předmět: |
chemistry.chemical_classification
Ozone Iodide Inorganic chemistry Public Health Environmental and Occupational Health chemistry.chemical_element Hydrogen-Ion Concentration Iodides Alkali metal Iodine chemistry.chemical_compound chemistry Air Pollution Reagent Nitrogen dioxide Titration Stoichiometry |
| Zdroj: | American Industrial Hygiene Association Journal. 19:251-257 |
| ISSN: | 0002-8894 |
| DOI: | 10.1080/00028895809343585 |
| Popis: | One percent KI in neutral buffered or alkali solutions was found to be more stable and useful than 20% KI, in bubblers for the collection and analysis of ozone in air. Either of the former may be used to determine low concentrations of ozone; however, there is a difference in their stoichiometry. Over the range of 0.01 to 30 ppm (v/v) results by the alkaline procedure should be multiplied by 1.54 to correct for stoichiometry. The neutral reagent has the advantages of not requiring the extra step of acidification and of an apparently more nearly uniform stoichiometry. The alkaline procedure is preferable when final analysis may be delayed for any considerable period. Data from preliminary experiments with gas phase titrations of nitrogen dioxide and nitric oxide against ozone appear to confirm the stoichiometry of the neutral reagent to be one mole of iodine released for each mole of ozone. references, 5 figures, 1 table. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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