Water as a solute in nitromethane: Effect of H2O–D2O isotope substitution on the solution volumetric properties between 278.15 K and 318.15 K |
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| Authors: | Evgeniy V. Ivanov |
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| Affiliation: | Laboratory of Thermodynamics of Solutions of Non-electrolytes and Biologically Active Substances, Institute of Solution Chemistry, Russian Academy of Sciences, 1 Akademicheskaya Str., 153045 Ivanovo, Russian Federation |
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| Abstract: | Densities of solutions of H2O and D2O in nitromethane, with the solute mole fractions ranging up to 0.03, were measured with an error of 1.5 · 10−5 cm3 · mol−1 at (278.15, 288.15, 298.15, 308.15, and 318.15) K using a vibrating-tube densimeter. Apparent and partial volumes and isobaric expansibilities (down to the infinite dilution) of water isotopologues were calculated. The temperature-dependent behavior of D2O–H2O solute isotope effects on the molar quantities studied were described taking into account the structure- and interaction-related peculiarities of the dissolving medium in question. |
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| Keywords: | Apparent and partial molar volumes and expansibilities Ordinary and heavy water Nitromethane Solute isotope effects |
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