Influence of temperature on ultrasonic velocity measurements of ethanol+water+1-propanol mixtures

摘要

The ultrasonic velocity of the ternary mixtures ethanol+water+1-propanol at the range 288.15-323.15 K and atmospheric pressure, has been measured over the whole concentration range. The corresponding change of isentropic compressibility was computed from the experimental data. The results were fitted by means of a temperature dependent equation, such parameters being gathered. The obtained experimental values indicate varying extent of interstitial accommodation among unlike molecules as a function of steric hindrance attending to 1-propanol composition as key component and as a function of hydrogen bond and temperature attending to ethanol composition as key component.