Kinetic and mechanistic studies of atmospheric degradation of diethyl pyrocarbonate initiated by OH radicals and chlorine atoms

RIMONDINO, GUIDO N.; IRIARTE, ANA G.; GROSSO, MERCEDES; MALANCA, FABIO E.

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY

ELSEVIER SCIENCE SA

Año: 2021 vol. 418 p. 113409 - 113409

1010-6030

he atmospheric reactivity of dicarbonyl compounds is becoming an increasing environmental concern due to the growth in their emissions, tracked by their usage as solvents and industrial additives during the last decades. In this paper, the gas phase degradation of diethyl pyrocarbonate (DEPC) initiated by both hydroxyl radicals and chlorine atoms was studied. The rate coefficients for the reaction between DEPC with OH radicals (kOH) and chlorine atoms (kCl) were determined, being kOH =1.2 ×10