TY - JOUR
T1 - Atmospheric chemistry of (CF3)2CFOCH3
AU - Andersen, Lene Løffler
AU - Østerstrøm, Freja From
AU - Nielsen, Ole John
AU - Andersen, Mads P.Sulbaek
AU - Wallington, Timothy J.
PY - 2014/6/27
Y1 - 2014/6/27
N2 - FTIR smog chamber techniques were used to measure k(Cl + (CF3)2CFOCH3) = (1.80 ± 0.42) × 10-13, k(Cl + (CF3)2CFOCHO) = (1.47 ± 0.56) × 10-14 , and k(OH + (CF3)2CFOCH3) = (1.55 ± 0.24) × 10-14 cm3 molecule-1 s-1 . The chlorine-atom initiated oxidation of (CF3)2CFOCH3 in air in the absence of NOX results in conversion of (CF3)2CFOCH3 into the formate, (CF3)2CFOCHO, in a yield indistinguishable from 100%. In the presence of NOX , the (CF3)2CFOCHO yield was decreased by approximately 17%, which we attribute to the formation of peroxy and/or alkoxy nitrates. The atmospheric lifetime of (CF3)2CFOCH3 was estimated to 3.7 years. The infrared spectrum of (CF3)2CFOCH3 was measured and a global warming potential GWP 100 = 354 was determined.
AB - FTIR smog chamber techniques were used to measure k(Cl + (CF3)2CFOCH3) = (1.80 ± 0.42) × 10-13, k(Cl + (CF3)2CFOCHO) = (1.47 ± 0.56) × 10-14 , and k(OH + (CF3)2CFOCH3) = (1.55 ± 0.24) × 10-14 cm3 molecule-1 s-1 . The chlorine-atom initiated oxidation of (CF3)2CFOCH3 in air in the absence of NOX results in conversion of (CF3)2CFOCH3 into the formate, (CF3)2CFOCHO, in a yield indistinguishable from 100%. In the presence of NOX , the (CF3)2CFOCHO yield was decreased by approximately 17%, which we attribute to the formation of peroxy and/or alkoxy nitrates. The atmospheric lifetime of (CF3)2CFOCH3 was estimated to 3.7 years. The infrared spectrum of (CF3)2CFOCH3 was measured and a global warming potential GWP 100 = 354 was determined.
UR - http://www.scopus.com/inward/record.url?scp=84901934778&partnerID=8YFLogxK
U2 - 10.1016/j.cplett.2014.05.036
DO - 10.1016/j.cplett.2014.05.036
M3 - Article
AN - SCOPUS:84901934778
SN - 0009-2614
VL - 607
SP - 5
EP - 9
JO - Chemical Physics Letters
JF - Chemical Physics Letters
ER -