Direct measurements of the photolysis rate coefficient of ethyl nitrate

Details Direct measurements of the photolysis rate coefficient of ethyl nitrate Direct measurements of the photolysis rate coefficient of ethyl nitrate

Oct 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988georl..15.1181l&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 15, Oct. 1988, p. 1181-1184.

Physics

11

Atmospheric Chemistry, Ethyl Compounds, Organic Nitrates, Photolysis, Reaction Kinetics, Air Pollution, Nitrogen Dioxide, Troposphere

Scientific paper

The photolysis rate coefficient of ethyl nitrate to NO2 and the ethoxy radical is directly measured using a luminol chemiluminescence NO2 detector. At a temperature of 288 K and a zenith angle of 60 degrees, the photolysis rate, j(1) is determined to be 0.45 X 10 to the -6th/s. At a zenith angle of 0 degrees, j(1) is estimated to be about 1.1 X 10 to the -6th/s. This implies a photolytic lifetime of about one month in the planetary boundary layer. It is shown that the photolysis frequency is temperature dependent, and doubles between 279 and 299 K.

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