Reaction of the NO3 Radical with CO: Determination of an Upper Limit for the Rate Constant Using FTIR Spectroscopy

AN UPPER LIMIT FOR THE REACTION OF CO WITH THE NITRATE RADICAL NO3 HAS BEEN DETERMINED EQUAL TO A*10 EXP(-19) CM EXP(+3) MOLEC EXP(-1) S EXP(-1) AT 295+-2 K. IN THE EXPERIMENT THE ISOTOPIC SPECIES C(13)O(16) AND C(13)O(18) MIXED AT 1-2 PPMV LEVEL IN SYNTHETIC AIR HAVE BEEN REACTED WITH NO3 AND THE REACTION FOLLOWED USING LONG PATH INFRARED ABSORPTION FT SPECTROSCOPY. THE RESULT IS OF INTEREST IN THE STUDIES ON THE ROLE PLAYED BY NO3 IN NIGHTTIME TROPOSPHERIC CHEMISTRY.NA-NOT AVAILABL