No literature data are available on the phase behavior of binary or ternary systems involving acetaldehyde, Versatic 10, and Veova 10. This experimental study presents bubble point curves within a temperature range of 295-350 K for the two binaries of acetaldehyde + Versatic 10 and acetaldehyde + Veova 10 at several concentrations. Bubble point data are also presented for the ternary system acetaldehyde + Versatic 10 + Veova 10. The Cailletet equipment was used for the measurements, which operates according to the synthetic method. The measured bubble point pressures increased with increasing temperature and reached up to 3 bar within the concentration and temperature range investigated. (C) 2014 Elsevier B.V. All rights reserved.