Quantitative solubility data for the hexadecane (1) - water (2) system 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. THE SOLUBILITY OF HEXADECANE (1) IN WATER (2)

All data on the solubility of hexadecane in water have probably been obtained at 298 K (Table 1, although Yeshiva and Yamane (ref 4) did not specify their temperature). However the values are in poor agreement and no 'best' value has been calculated. It may also be noted that all values are higher than the value of ~2 x 10^-9 g(1)/100 g s1n predicted by extrapolation of lower hydrocarbon solubilities (although whether this extrapolation remains valid for very long chain hydrocarbons is not known).


2. THE SOLUBILITY OF WATER (2) IN HEXADECANE (1)

The solubility of water in hexadecane at atmospheric pressure has been reported by Schatzberg (ref 1) and Englin et al. (ref 2) over a range of temperatures. However, agreement is poor (Table 3) and the data must be considered as very Tentative.

At higher pressures the solubility of water in hexadecane has been reported over the range 523-598 K and 1.7-78.5 MPa by Skripka et al. (ref 5, 7, 8). As these are the only data available under these conditions no Critical Evaluation is possible. The interested user is referred to the relevant Data Sheet for the experimental values.