9,9-Bis(fluorenylidene)and Tetra-n-heptylammonium Iodide for the Measurement of Ozone Concentrations in Organic Media

摘要

The two title compounds were shown to be useful reagents for determination of ozone and peroxides in organic media and at temperatures as low as -78deg. 9,9'-Bis(fluoren- ylidene) is a highly colored hydrocarbon whose quantita- tive disappearance upon reaction with ozone can be followed spectrophotometrically. Tetra-n-heptylammo- nium iodide, a nonhygroscopic organic-soluble iodide, reacts quantitatively with ozone and peroxidic materials yielding iodine, which can be measured by the usual methods.