Solubility of xenon in n-hexane between 257 and 333 K

Measurements of the solubility of xenon in liquid n-hexane are reported as a function of temperature from 257 to 333 K. A new experimental procedure is described and its accuracy is inferred to be 1% by comparing the data obtained with that reported in the literature in the smaller temperature range from 283 to 303 K. The data outside this temperature range are original in this work. The imprecision of the experimental data, considered as the average absolute deviations from appropriate smoothing equations, is less than 0.6%. The total volume occupied by the saturated solution was also determined experimentally and the data obtained was used to calculate the apparent molar volume of the solute in the solution as a function of the temperature from 277 to 325 K. From Henry's law coefficient and its variation with temperature, the partial molar functions of solvation such as the standard Gibbs energy, the enthalpy and entropy have been calculated from 255 to 335 K. (C) 2002 Elsevier Science B.V. All rights reserved.