Abstract
High precision densities of sodium chloride solutions at a constant pressure of 200 bar and temperatures between 175°C and 350°C have been measured by a mercury displacement technique. The densities have been converted to apparent molar volumes. The apparent molar volumes decrease with increasing temperature and decreasing concentration whereas the concentration effect increases with temperature. Standard partial molar volumes range from 8.0 cm3-mol−1 at 175°C to −600 cm3-mol−1 at 350°C. The results indicate the applicability of the unextended Debye-Hückel limiting law up to concentrations of 0.02 mol-kg−1.
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Grant-Taylor, D.F. Partial molar volumes of sodium chloride solutions at 200 bar, and temperatures from 175 to 350°C. J Solution Chem 10, 621–630 (1981). https://doi.org/10.1007/BF00650738
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DOI: https://doi.org/10.1007/BF00650738