KINETICS OF THE REACTION OF OH RADICALS WITH A SERIES OF ESTERS UNDERSIMULATED CONDITIONS AT 295-K

The rate constants of the isopropyl acetate, n-propyl acetate, isoprop enyl acetate, n-propenyl acetate, n-butyl acetate, and ethyl butyrate reactions with OH radicals were determined in purified air under atmos pheric conditions, at 750 torr and (295 +/- 2) K. A relative rate expe rimental method was used; n-heptane, n-octane, and n-nonane were the r eference compounds, with, respectively. rate constants for the reactio n with OH of 7.12 x 10(-12), 8.42 x 10(-12), and 9.70 x 10(-12) molecu le(-1) cm(3) s(-1). The following rate constants were obtained in unit s of 10(-12) molecule(-1) cm(3) s(-1) : isopropyl acetate, (3.12 +/- 0 .29); n-propyl acetate, (1.97 +/- 0.24); isopropenyl acetate, (62.53 /- 1.24); n-propenyl acetate, (24.57 +/- 0.24); n-butyl acetate, (3.29 +/- 0.35); and ethyl butyrate, (4.37 +/- 0.42). Tertiary butyl acetat e has a low reactivity with OH radicals (< 1 x 10(-12) molecule(-1) cm (3) s(-1)). (C) 1996 John Wiley & Sons, Inc.