Abstract
The effect of ultraviolet irradiation with a wavelength of 390 nm on the evaporation of droplets of the homologous series of alcohols (n-propanol, n-butanol, n-pentanol, n-heptanol, n-octanol, and n-decanol) at 10, 30, 50, 100, and 200 mm Hg in an atmosphere of dry nitrogen is studied. The values of the evaporation rate of alcohols are calculated with and without irradiation. Starting from n-pentanol, the rate of evaporation grows strongly for droplets of higher alcohols under the effect of low-power irradiation not associated with the heating of the evaporating droplets of alcohols. The obtained results are analyzed by comparing them to experimental data on neutron scattering by alcohols. It is shown that free convection must be considered in order to describe the evaporation process. Expressions of different authors for describing this effect are analyzed.
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Original Russian Text © O.V. Korobko, A.V. Britan, G.H. Verbinskaya, D.A. Gavryushenko, 2015, published in Zhurnal Fizicheskoi Khimii, 2015, Vol. 89, No. 6, pp. 1043–1045.
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Korobko, O.V., Britan, A.V., Verbinskaya, G.H. et al. Effect of UV irradiation on the evaporation rate of alcohols droplets. Russ. J. Phys. Chem. 89, 1120–1122 (2015). https://doi.org/10.1134/S0036024415060175
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DOI: https://doi.org/10.1134/S0036024415060175