The isothermal and isobaric (vapour + liquid) equilibria for (2,2-dimethoxypropane + methanol) and (2,2-dimethoxypropane + acetone) measured with an inclined ebulliometer are presented. The experimental results are analysed using the UNIQUAC equation with the temperature-dependent binary parameters with satisfactory results. Isobaric (vapour + liquid) equilibria data for these systems at p = 99.99 kPa are compared with the literature data. Experimental vapour pressure of 2,2-dimethoxypropane are also included. (C) 2003 Elsevier Ltd. All rights reserved.