Reaction of hydroxyl radical with nitric acid: Insights into its mechanism

SS Brown, JB Burkholder, RK Talukdar…

Index: Brown, Steven S.; Burkholder, James B.; Talukdar, Ranajit K.; Ravishankara Journal of Physical Chemistry A, 2001 , vol. 105, # 9 p. 1605 - 1614

Full Text: HTML

Citation Number: 33

Abstract

The rate constant for the reaction of hydroxyl radicals with nitric acid has an unusual pressure and temperature dependence. To explore the mechanism for this reaction, we have measured rate constants for reactions of isotopically substituted species OD+ DNO3, OH+ DNO3, OD+ HNO3, and 18OH+ HNO3 and the yield of NO3 product. Deuterium substitution on nitric acid results in more than a 10-fold reduction in the rate constant, ...