Atmospheric chemistry of C2F5CH2OCH3 (HFE-365mcf)

Autor:	Ditte L. Thomsen, Timothy J. Wallington, Ole John Nielsen, V. F. Andersen
Rok vydání:	2011
Předmět:	Infrared Methyl formate Radical Analytical chemistry General Physics and Astronomy chemistry.chemical_element Infrared spectroscopy Diluent chemistry.chemical_compound chemistry Atmospheric chemistry Chlorine Formate Physical and Theoretical Chemistry
Zdroj:	Phys. Chem. Chem. Phys.. 13:2758-2764
ISSN:	1463-9084 1463-9076
DOI:	10.1039/c0cp01609h
Popis:	FTIR smog chamber techniques were used to measure k(Cl + C(2)F(5)CH(2)OCH(3)) = (2.52 ± 0.37) × 10(-11) and k(OH + C(2)F(5)CH(2)OCH(3)) = (5.78 ± 1.02) × 10(-13) cm(3) molecule(-1) s(-1) in 700 Torr of air diluent at 296 ± 1 K. The atmospheric lifetime of C(2)F(5)CH(2)OCH(3) is estimated to be 20 days. Reaction of chlorine atoms with C(2)F(5)CH(2)OCH(3) proceeds 18 ± 2% at the -CH(2)- group and 82 ± 2% at the -CH(3) group. Reaction of OH radicals with C(2)F(5)CH(2)OCH(3) proceeds 44 ± 5% at the -CH(2)- group and 56 ± 5% at the -CH(3) group. The atmospheric fate of C(2)F(5)CH(2)OCH(2)O radicals is reaction with O(2) to give C(2)F(5)CH(2)OCHO. The atmospheric fate of C(2)F(5)CH(O)OCH(3) radicals is C-C bond-cleavage to give C(2)F(5) radicals and CH(3)OCHO (methyl formate). The infrared spectrum was recorded and used to estimate a global warming potential of 6 (100 year time horizon) for C(2)F(5)CH(2)OCH(3).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47a01d5d052b0e03e86ee27c6bce6b28 https://doi.org/10.1039/c0cp01609h Zobrazit plný text záznamu