This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of Physical Chemistry C, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/acs.jpcc.5b02833. Properties of the Liquid-Vapor Interface of Acetone- Water Mixtures. A Computer Simulation and ITIM Analysis Study Balázs Fábián, 1,2 Balázs Jójárt, 3 George Horvai, 2,4 and Pál Jedlovszky 1,4,5,* 1 Laboratory of Interfaces and Nanosize Systems, Institute of Chemistry, Eötvös Loránd University, Pázmány P. Stny 1/A, H-1117 Budapest, Hungary 2 Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szt. Gellért tér 4, H-1111 Budapest, Hungary 3 Department of Chemical Informatics, Faculty of Education, University of Szeged, Boldogasszony sgt. 6. H-6725 Szeged, Hungary 4 MTA-BME Research Group of Technical Analytical Chemistry, Szt. Gellért tér 4, H-1111 Budapest, Hungary 5 EKF Department of Chemistry, Leányka utca 6, H-3300 Eger, Hungary Running title: Liquid-Vapor Interface of Acetone-Water Mixtures