IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Undecane with Water
Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) Undecane; C11H24; [1120-21-4]  NIST Chemistry WebBook for detail
Evaluator:
   G.T. Hefter, School of Mathematical and Physical Sciences, Murdoch University, Perth, W.A., Australia.
M.C. Haulait-Pirson, Department of Chemistry, University of Leuven, Belgium. December 1985.

 Critical Evaluation:
   Quantitative solubility data for the system undecane (1) – water (2) have been reported in the publications listed in Table 1

The original data in all of these publications are compiled in the Data Sheets immediately following this Critical Evaluation.

For convenience further discussion of this system will be divided into two parts.


1. SOLUBILITY OF UNDECANE (1) IN WATER (2)
The available data for the solubility of undecane in water are listed in Table 2.

Although the agreement between the two studies (ref 2,3) is very good considering the very low solubility involved, both values are very much lower than expected from an extrapolation of n-alkane solubilities. This may be due (ref 2) to micelle formation. The available data must therefore be considered as Doubtful. The extrapolated value of 1.4 x 10-6 g(1)/100g s1n (x1 = 1.6 x 10-10) may be more realistic.


2. SOULBILITY OF WATER (2) IN UNDECANE (1)
As only one publication (ref 1) reports solubility data for water in undecane no Critical Evaluation is possible. However, it may be noted that the data of Schatzberg (ref 1) are generally reliable. The interested user is referred to the relevant Data Sheet for the experimental values.



 Experimental Data:   (Notes on the Nomenclature)
Table 1. Quantitative Solubility Studies of the Undecane (1) - Water (2) System
AuthorT/KReferenceSolubilityMethod
Schatzberg298, 3131(2) in (1)Karl Fischer
McAuliffe2982(1) in (2)GLC
Krasnoshchekova and Gubergrits2983(1) in (2)GLC
Table 2. Solubility Values of Undecane (1) in Water (2)
T/KReferenceSol. PowerSolubilityBest Sol. PowerBest SolubilityBest Sol. Notex1 Powerx1x1 Note
2982, 374.4, 3.6 g(1)/100g sln74.0 ± 0.4 g(1)/100g slna104.6a
 Notes:
Table 2a  Order of magnitude only, see text; obtained by averaging

 References: (Click a link to see its experimental data associated with the reference)
   1  Schatzberg, P., J. Phys. Chem. 1963, 67, 776-9.
   2  McAuliffe, C., Science 1969, 163, 478-9.
   3  Krasnoschchekova, R.Ya.; Gubergrits, M.Ya., Neftekhimiya 1973, 13, 885-8.