Atmospheric chemistry of C2F5CH2OCH3 (HFE-365mcf)

Ditte Linde Thomsen; Vibeke Friis Andersen; Ole John Nielsen; Timothy Wallington

Atmospheric chemistry of C2F5CH2OCH3 (HFE-365mcf)

Ditte Linde Thomsen, Vibeke Friis Andersen, Ole John Nielsen, Timothy Wallington

Kemisk Institut

6 Citationer (Scopus)

Abstract

FTIR smog chamber techniques were used to measure k(Cl + C ₂F₅CH₂OCH₃) = (2.52 ± 0.37) × 10^-11 and k(OH + C₂F₅CH ₂OCH₃) = (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 C₂F ₅CH₂OCH₃ 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 C₂F ₅CH₂OCH₃ 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 C₂F ₅CH₂OCHO. The atmospheric fate of C₂F ₅CH(O)OCH₃ radicals is C-C bond-cleavage to give C ₂F₅ 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 C₂F₅CH ₂OCH₃.

Originalsprog	Engelsk
Tidsskrift	{PHYSICAL CHEMISTRY CHEMICAL PHYSICS}
Vol/bind	13
Sider (fra-til)	2758-2764
Antal sider	6
Status	Udgivet - 21 feb. 2011

Citationsformater

@article{fe7e6dce140c4b55a632bdb05484813f,

title = "Atmospheric chemistry of C2F5CH2OCH3 (HFE-365mcf)",

abstract = "FTIR smog chamber techniques were used to measure k(Cl + C 2F5CH2OCH3) = (2.52 ± 0.37) × 10-11 and k(OH + C2F5CH 2OCH3) = (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 C2F 5CH2OCH3 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 C2F 5CH2OCH3 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 C2F 5CH2OCHO. The atmospheric fate of C2F 5CH(O)OCH3 radicals is C-C bond-cleavage to give C 2F5 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 C2F5CH 2OCH3.",

author = "Thomsen, {Ditte Linde} and Andersen, {Vibeke Friis} and Nielsen, {Ole John} and Timothy Wallington",

year = "2011",

month = feb,

day = "21",

language = "English",

volume = "13",

pages = "2758--2764",

journal = "Physical Chemistry Chemical Physics",

issn = "1463-9076",

publisher = "Royal Society of Chemistry",

}

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 - 2011/2/21

Y1 - 2011/2/21

N2 - FTIR smog chamber techniques were used to measure k(Cl + C 2F5CH2OCH3) = (2.52 ± 0.37) × 10-11 and k(OH + C2F5CH 2OCH3) = (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 C2F 5CH2OCH3 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 C2F 5CH2OCH3 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 C2F 5CH2OCHO. The atmospheric fate of C2F 5CH(O)OCH3 radicals is C-C bond-cleavage to give C 2F5 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 C2F5CH 2OCH3.

AB - FTIR smog chamber techniques were used to measure k(Cl + C 2F5CH2OCH3) = (2.52 ± 0.37) × 10-11 and k(OH + C2F5CH 2OCH3) = (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 C2F 5CH2OCH3 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 C2F 5CH2OCH3 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 C2F 5CH2OCHO. The atmospheric fate of C2F 5CH(O)OCH3 radicals is C-C bond-cleavage to give C 2F5 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 C2F5CH 2OCH3.

M3 - Journal article

SN - 1463-9076

VL - 13

SP - 2758

EP - 2764

JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

ER -

Atmospheric chemistry of C2F5CH2OCH3 (HFE-365mcf)

Abstract

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