Physics
Scientific paper
May 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994georl..21..805h&link_type=abstract
Geophysical Research Letters, Volume 21, Issue 9, p. 805-808
Physics
4
Atmospheric Composition And Structure: Middle Atmosphere-Composition And Chemistry
Scientific paper
Rate constants for the reactions of OH with CH3Cl, CH2Cl2, CHCl3, and CH3Br have been measured by a relative rate technique in which the reaction rate of each compound was compared to that of HFC-152a (CH3CHF2) and (for CH2Cl2) HFC-161 (CH3CH2F). Using absolute rate constants for HFC-152a and HFC-161 which we have determined relative to those for CH4, CH3CCl3, and C2H6, temperature dependent rate constants of both compounds were derived. The derived rate constant for CH3Br is in good agreement with recent absolute measurements. However, for the chloromethanes all the rate constants are lowere at atmospheric temperatures than previously reported, especially for CH2Cl2 where the present rate constant is about a factor of 1.6 below the JPL 92-20 value. The new rate constant appears to resolve a discrepancy between the observed atmospheric concentrations and those calculated from the previous rate constant and estimated release rates.
Demore William B.
Hsu Kenneth J.
No associations
LandOfFree
Rate constants for the reactions of OH with CH3Cl, CH2Cl2, CHCl3, and CH3Br does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Rate constants for the reactions of OH with CH3Cl, CH2Cl2, CHCl3, and CH3Br, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rate constants for the reactions of OH with CH3Cl, CH2Cl2, CHCl3, and CH3Br will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-886417