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Atmospheric photodissociation lifetimes for nitromethane, methyl nitrite, and methyl nitrate
Author(s) -
Taylor W. D.,
Allston T. D.,
Moscato M. J.,
Fazekas G. B.,
Kozlowski R.,
Takacs G. A.
Publication year - 1980
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550120404
Subject(s) - nitromethane , photodissociation , chemistry , nitrate , nitrite , photochemistry , ultraviolet , organic chemistry , optics , physics
Atmospheric photodissociation rate coefficients and photodissociation lifetimes for nitromethane, methyl nitrite, and methyl nitrate were calculated as a function of altitude from their measured visible and near ultraviolet photoabsorption cross sections at 298 K. The lifetime of methyl nitrite is nearly independent of altitude and is approximately 2 min. From 0 to 50 km the lifetime of nitromethane varies from 10 to 0.5 hr, while that of methyl nitrate changes from 5.3 to 0.09 days, respectively.