IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: 1,1,1,2,2,3,4,5,5,5-Decafluoro-3-[1,2,2,2-tetra-fluoro-1-(trifluoromethyl)ethyl]-4-(trifluoro-methyl)pentane with water

   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) 1,1,1,2,2,3,4,5,5,5-Decafluoro-3-[1,2,2,2-tetra-fluoro-1-(trifluoromethyl)ethyl]-4-(trifluoro-methyl)pentane; C9F20; [50285-18-2]  NIST Chemistry WebBook for detail

   A. L. Horvath, Imperial Chemical Industries Limited, Runcorn, U.K., July 1993.

Critical Evaluation:

         The solubility of 1,1,1,2,2,3,4,5,5,5-decafluoro-3-[1,2,2,2-tetrafluoro-1-(trifluoromethyl)ethyl]-4-(trifluoro-methyl)pentane (1) in water (2) has been studied by two work groups in the same laboratory, whereas the solubility of water (2) in 1,1,1,2,2,3,4,5,5,5-decafluoro-3-[1,2,2,2-tetrafluoro-1-(trifluoromethyl)ethyl]-4-(trifluoromethyl)pentane (1) has not been investigated yet.

      In both the experiments of Kabal'nov et al.1 and of Kabalnov et al.2 the solubility was calculated from the particle size growth in emulsions due to Ostwald ripening at 298.15 K. The reported data are in reasonable agreement with respect to the errors estimated by the authors.

      It is not possible to establish any shortcomings of the experimental procedures from the description. The measurements seem to be produced relatively accurate results. When one considers the saturation equilibrium, the method of analysis, and the reported standard deviation, one can conclude the values are reasonably accurate. Because it is not possible to say which of the two data points of Kabal'nov et al.1 and of Kabalnov et al.2 is more accurate, it is suggested that the average of the two as presented in Table 41 in weight percent, mole fraction, and mole per 100 gram is possibly the most reliable.

Experimental Data:   (Notes on the Nomenclature)

Table 41. Tentative solubility of 1,1,1,2,2,3,4,5,5,5-decafluoro-3-[1,2,2,2-tetrafluoro-1-(trifluoromethyl)ethyl]-4-(tetrafluoromethyl)pentane (1) in water (2)
t/°CT/K102 * Mass Fraction w11011 * Mole Fraction x1102 * w1/M1 [mol g**-1]
25298.151.27 x 10-74.682.60 x 10-10
References: (Click a link to see its experimental data associated with the reference)

   1  Kabal'nov, A.S.; Gervits, L.D.; Makarov, K.N., Kolloidnyi Zh. 52, 1060-6 (1990).
   2  Kabal'nov, A.S.; Makarov, K.N.; Shcherbakova, O.V., J. Fluorine Chem. 50, 271-84 (1990).