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The gas‐phase reaction of chlorine nitrate with water vapor
Author(s) -
Atkinson Roger,
Tuazon Ernesto C.,
Mac Leod Hélène,
Aschmann Sara M.,
Winer Arthur M.
Publication year - 1986
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl013i002p00117
Subject(s) - reaction rate constant , stratosphere , water vapor , chlorine , chemical kinetics , homogeneous , analytical chemistry (journal) , chemical reaction , nitrate , nitrogen , reaction rate , chemistry , kinetics , thermodynamics , environmental chemistry , atmospheric sciences , catalysis , organic chemistry , physics , quantum mechanics
The kinetics of the reaction of chlorine nitrate (ClONO 2 ) with water vapor have been investigated in large‐volume (2500‐L and 5800‐L) Teflon or Teflon‐coated environmental chambers to assess the importance of this reaction as a loss process for odd nitrogen in the stratosphere. These data show that the upper limit rate constant for the homogeneous gas phase reaction between ClONO 2 and H 2 O is <2 × 10 −21 cm³ molecule −1 s −1 at 298 ± 1 K. With this rate constant, the homogeneous reaction of ClONO 2 with water vapor will be of negligible importance under stratospheric conditions.