Article,

A NEW DARK SOURCE OF THE GASEOUS HYDROXYL RADICAL FOR RELATIVE RATE MEASUREMENTS

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Journal of Physical Chemistry, 97 (6): 1172--1177 (January 1993)

Abstract

A new dark source of OH for relative rate studies is described. This technique, which is simple to apply and yields results of high precision, is applicable to organics which react very slowly with O3. This method involves measuring the relative rates of decay of pairs of simple alkanes (ethane, propane, n-butane, isobutane, and n-hexane) or toluene in the presence of relatively high concentrations of O3/O2 (4-36 Torr O3) at 298 K and 1 atm total pressure in the dark. The conclusion that OH is the reactant is reached by comparison of the measured relative rates of decay of the organics to literature values for the OH reactions and to experime…(more)

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