Abstract
The volumetric properties of aqueous solutions containing non-electrolytes have been determined by density measurements in the temperature range 0.5–25 °C. Linear polyols CH2OH(CHOH)nCH2OH with n= 2–4 (n= 4 has three diasteroisomers), myo-inositol and t-butylurea have been studied. text-decoration:overlineV°x and the coefficients of the virial expansion of the excess property (Vxx, Vxxx…) have been evaluated and interpreted in terms of solute–solute and solute–solvent interactions with the aid of the enthalpy and free-energy data where known. The theory of group contributions has been used to interpret the Vxx values of those linear polyols not exhibiting solute–solute interactions at 25 °C. The results confirm the relation between the signs of the enthalpic and volumetric contributions also found for other kinds of non-electrolyte.
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More From: Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
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