R. Atkinson, E. C. Tuazon, T. Wallington
1987
Citations
2
Influential Citations
63
Citations
Journal
Environmental Science & Technology
Abstract
The atmospherically important reactions of aniline, N,N-dimethylaniline, pyridine, 1,3,5-triazine, and nitrobenzene, chosen as model compounds for a series of industrially and agriculturally important chemicals, have been studied with the OH radical, O/sub 3/, and gaseous HNO/sub 3/ by a variety of experimental techniques. At room temperature, the following rate constants (in cm/sup 3/ molecule/sup -1/ s/sup -1/) were obtained for these gas-phase reactions: (OH radical reactions) aniline, (1.18 +/- 0.11) x 10/sup -10/; N,N-dimethylaniline, (1.48 +/- 0.11) x 10/sup -10/; pyridine, (4.9 +/- 0.4) x 10/sup -13/; 1,3,5-triazine, (1.5 +/- 0.3) x 10/sup -13/; nitrobenzene, <7 x 10/sup -13/; (O/sub 3/ reactions) aniline, (1.12 +/- 0.14) x 10/sup -18/; N,N-deimethylaniline, (9.1 +/- 1.0) x 10/sup -18/; pyridine, < 1.1 x 10/sup -20/; 1,3,5-triazine, < 4 x 10/sup -21/; nitrobenzene, < 7 x 10/sup -21/; (HNO/sub 3/ reactions) aniline, greater than or equal to 1.5 x 10/sup -16/; N,N-dimethylaniline, greater than or equal to 2.0 x 10/sup -16/; pyridine, greater than or equal to 1.5 x 10/sup -16/; 1,3,5-triazine, less than or equal to 6 x 10/sup -19/. Under atmospheric conditions, the O/sub 3/ reactions are calculated to be of negligible importance. The implications of the OH radical and HNO/sub 3/more » reactions for the atmospheric lifetimes of these nitrogen-containing organic compounds are discussed. 28 references, 7 figures, 9 tables.« less