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The Effect of Deuteron Substitution in Wated on the Speed of Sound in Aqueus Solutions of 1-Propanol

Marczak W., Spurek M.

Molecular and Quantum Acoustics

2001

Vol. 22

157-163

Aqueous solutions of 1-alkans are often regarded as model systems in the investigation of hydration phenomena. The deuteron substitution in water changes the properties of aqueous alkans solutions as well as thode of such more complicated systems: cells, tissues and organs of living organisms. In this work, the speed of sound in mixtures of 1-propanol with D2O was compared with the speeds in binary solutions of methanol, ethanol and 1-propanol in H2O. A somewhat more pronounced hydrophobic hydration in D2O than in H2O is manifested by an effect similar to that resulting from the elongation of the alcohol molecule.