Rate constant and branching ratio of the reaction of ethyl peroxy radicals with methyl peroxy radicals

Abstract

The cross-reaction of ethyl peroxy radicals (C2H5O2) with methyl peroxy radicals (CH3O2) (R1) has been studied using laser photolysis coupled to time resolved detection of the two different peroxy radicals...

Strong Uptake of Gas-Phase Organic Peroxy Radicals (ROO•) by Solid Surfaces Driven by Redox Reactions

“…For instance, in oximetry, a technique used to determine the activity of an oxidant in biochemistry or in chemical amplification, which is used to measure HOO • and ROO • in the atmosphere, the radicals are converted into O 2 , NO 2 , or other compounds, which are then measured. Other common techniques for the detection of organic peroxy radicals, such as electron spin resonance (ESR) , and optical spectroscopies, , are direct, but with a few exceptions, do not distinguish between different ROO • radicals. They thus lead to some significant uncertainties in the results as, in nearly all cases, more than one radical is present in the system and contributes to the observed signals.…”