Abstract
Freezing point depressions of dilute aqueous sodium chloride solutions have been computed by means of the best osmotic coefficient equations. In the calculations, the equations of Huckel, Hamer and Pitzer were used for the osmotic coefficients. The experimental freezing point data available in the literature for dilute NaCl solutions can in most cases be predicted within experimental error with Huckel's equation, determined in our laboratory for the temperature of 298.15 K. The measured freezing points can also be calculated very accurately with Hamer's equation determined for the same temperature. The freezing point depressions tabulated in this paper for NaCl solutions can be recommended as reference values. These values are very reliable because they agree accurately with the experimental data and have been calculated by means of Huckel's equation, which, in addition, predicts well almost all existing electrochemical data measured in dilute NaCl solutions at 298.15 K
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