Deviation from Linearity of the Concentration Dependence of the Molecular Sound Velocity in Liquid Mixtures
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Accuracy of the linear dependence of the molecular sound velocity on the molar fractions of the component liquids was investigated in about 100O binary mixtures, employing existing ultrasonic data. The linearity proved to hold true within an accuracy of 0.3% for mixtures of two hydrocarbons or two monovalent alcohols, among others, while the deviation from linearity was larger (0.3%-4%) for the following mixtures: the aqueous solutions, mixtures containing one heavy component such as carbon tetrachloride or chloroform with light partners, mixtures containing glycerine, glycol, aniline, acetone, nitrobenzene, etc. The molecular compressibility (of Wada) showed a similar tendency, though the deviation from linearity was somewhat smaller than that of the molecular sound velocity, especially in case of the mixtures consisting of two component liquids of widely different densities.
- 社団法人日本物理学会の論文
- 1958-12-05
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