TY - JOUR
T1 - Reaction rate constants with OH radicals at 253–328 K and atmospheric implications for (CF3)2CHOCxH(2x + 1) (x = 1, 2, 3)
AU - Li, Wei
AU - Qin, Sheng
AU - Zhang, Qiyan
AU - Guo, Zhikai
AU - Zhang, Xiaoling
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2019/1/16
Y1 - 2019/1/16
N2 - Rate constants at 253–328 K for reactions of OH radicals with (CF3)2CHOCH3 (k6), (CF3)2CHOCH2CH3 (k7), and (CF3)2CHOCH2CH2CH3 (k8) were studied using a relative rate method. Data on k6, k7, and k8 (2.13 × 10−13, 1.07 × 10−12, and 1.92 × 10−12 cm3 molecule−1 s−1, respectively) were obtained at 298 K. The corresponding radiative efficiencies (0.103, 0.034, and 0.021 W m−2 ppb−1) were calculated from infrared absorption spectra measured at room temperature. Global warming potential (GWP100) was estimated to be 5, <1, and <1, respectively, and the photochemical ozone creation potential in all cases was <10.
AB - Rate constants at 253–328 K for reactions of OH radicals with (CF3)2CHOCH3 (k6), (CF3)2CHOCH2CH3 (k7), and (CF3)2CHOCH2CH2CH3 (k8) were studied using a relative rate method. Data on k6, k7, and k8 (2.13 × 10−13, 1.07 × 10−12, and 1.92 × 10−12 cm3 molecule−1 s−1, respectively) were obtained at 298 K. The corresponding radiative efficiencies (0.103, 0.034, and 0.021 W m−2 ppb−1) were calculated from infrared absorption spectra measured at room temperature. Global warming potential (GWP100) was estimated to be 5, <1, and <1, respectively, and the photochemical ozone creation potential in all cases was <10.
KW - Atmospheric lifetime
KW - Global warming potential
KW - Hydrofluoroethers
KW - OH radicals
KW - Photochemical ozone creation potential
UR - http://www.scopus.com/inward/record.url?scp=85056187904&partnerID=8YFLogxK
U2 - 10.1016/j.cplett.2018.10.027
DO - 10.1016/j.cplett.2018.10.027
M3 - Article
AN - SCOPUS:85056187904
SN - 0009-2614
VL - 714
SP - 125
EP - 130
JO - Chemical Physics Letters
JF - Chemical Physics Letters
ER -