Bubble point temperatures (at 94.95 kPa) over the entire composition range are measured for the binary mixtures formed by nitrobenzne with: bromobenzene, N,N-dimethyl formamaide, o-, m- and p-cresols, employing a Swietoslawski type ebulliometer. Wilson equation is used to represent the measured liquid phase composition versus bubble temperature data and the computed values of the excess Gibbs energy are tabulated and discussed. (c) 2007 Elsevier B.V All rights reserved.