Atmospheric chemistry of C2F5CH2OCH3 (HFE-365mcf)
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Atmospheric chemistry of C2F5CH2OCH3 (HFE-365mcf). / Thomsen, Ditte Linde; Andersen, Vibeke Friis; Nielsen, Ole John; Wallington, Timothy.
I: {PHYSICAL CHEMISTRY CHEMICAL PHYSICS}, Bind 13, Nr. 7, 2011, s. 2758-2764.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Atmospheric chemistry of C2F5CH2OCH3 (HFE-365mcf)
AU - Thomsen, Ditte Linde
AU - Andersen, Vibeke Friis
AU - Nielsen, Ole John
AU - Wallington, Timothy
PY - 2011
Y1 - 2011
N2 - FTIR smog chamber techniques were used to measure k(Cl + C2F5CH2OCH3) = (2.52 ± 0.37) × 10−11 and k(OH + C2F5CH2OCH3) = (5.78 ± 1.02) × 10−13 cm3 molecule−1 s−1 in 700 Torr of air diluent at 296 ± 1 K. The atmospheric lifetime of C2F5CH2OCH3 is estimated to be 20 days. Reaction of chlorine atoms with C2F5CH2OCH3 proceeds 18 ± 2% at the –CH2– group and 82 ± 2% at the –CH3 group. Reaction of OH radicals with C2F5CH2OCH3 proceeds 44 ± 5% at the –CH2– group and 56 ± 5% at the –CH3 group. The atmospheric fate of C2F5CH2OCH2O radicals is reaction with O2 to give C2F5CH2OCHO. The atmospheric fate of C2F5CH(O)OCH3 radicals is C–C bond-cleavage to give C2F5 radicals and CH3OCHO (methyl formate). The infrared spectrum was recorded and used to estimate a global warming potential of 6 (100 year time horizon) for C2F5CH2OCH3.
AB - FTIR smog chamber techniques were used to measure k(Cl + C2F5CH2OCH3) = (2.52 ± 0.37) × 10−11 and k(OH + C2F5CH2OCH3) = (5.78 ± 1.02) × 10−13 cm3 molecule−1 s−1 in 700 Torr of air diluent at 296 ± 1 K. The atmospheric lifetime of C2F5CH2OCH3 is estimated to be 20 days. Reaction of chlorine atoms with C2F5CH2OCH3 proceeds 18 ± 2% at the –CH2– group and 82 ± 2% at the –CH3 group. Reaction of OH radicals with C2F5CH2OCH3 proceeds 44 ± 5% at the –CH2– group and 56 ± 5% at the –CH3 group. The atmospheric fate of C2F5CH2OCH2O radicals is reaction with O2 to give C2F5CH2OCHO. The atmospheric fate of C2F5CH(O)OCH3 radicals is C–C bond-cleavage to give C2F5 radicals and CH3OCHO (methyl formate). The infrared spectrum was recorded and used to estimate a global warming potential of 6 (100 year time horizon) for C2F5CH2OCH3.
U2 - 10.1039/c0cp01609h
DO - 10.1039/c0cp01609h
M3 - Journal article
VL - 13
SP - 2758
EP - 2764
JO - Physical Chemistry Chemical Physics
JF - Physical Chemistry Chemical Physics
SN - 1463-9076
IS - 7
ER -
ID: 37856936