Journal ArticleDOI
Velocity of Sound in Liquids and Chemical Constitution
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In this paper, it was shown that the velocity of sound cannot be a proper basis of comparison in any homologous series and the result of plotting the constant R against the molecular weight of members of a homology series leads to the equation R = αM + β, where α is a general constant and β a characteristic constant for any one homology.Abstract:
A study of the recently obtained data on the velocity of sound and density in liquids reveals a simple relation between these quantities namely the law, v⅓M/ρ = R where v is the velocity of sound in the liquid, M the molecular weight, ρ the density and R a constant independent of temperature. It is shown that the velocity of sound cannot be a proper basis of comparison in any homologous series. The result of plotting the constant R against the molecular weight of members of homologous series leads to the equation R = αM + β where α is a general constant and β a characteristic constant for any one homologous series. The difference in R for successive members of homologous series is a constant independent of the series and R is an additive function of the chemical structure. Values of R for hydrogen, carbon, oxygen, bromine, and chlorine are tabulated.read more
Citations
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Book ChapterDOI
Mechanical properties of solid polymers
TL;DR: In this paper, the authors show that the elastic properties of polymers are controlled by the three moduli and the Poisson ratio; these four parameters are theoretically interrelated, and the moduli are also related to the different sound velocities.
Journal ArticleDOI
Melting and freezing behavior of polyethylene oxide
R. W. Warfield,Bruce Hartmann +1 more
TL;DR: In this article, a compressibility pressure-temperature cycle was developed for polyethylene oxide (PEO) by which both the melting and freezing points of this polymer are easily determined.
Journal ArticleDOI
Excess Molar Properties for Binary Systems of CnMIM-BF4 Ionic Liquids with Alkylamines in the Temperature Range (298.15 to 318.15) K. Experimental Results and Theoretical Model Calculations
TL;DR: The experimental densities ρ and speeds of sound u for pure 1-hexyl-3-methylimidazolium tetrafluoroborate ([C6mim][BF4]), 1-octyl, 3-methyl-methyl-3methylamidazolate (THM-THM), butylamine (BA), and octylamines (OA) from (293.15 to 323.15) K and binary mixtures of the ionic liquids (ILs) with amines at (298.
Journal ArticleDOI
Studies on molecular interactions in different solvent extractants with n-butanol at temperature 303.15 K: A thermoacoustic investigation
TL;DR: In this paper, the ultrasonic velocities and densities of binary mixtures of different phosphinic acids with n-butanol were measured over the whole mole fraction range at temperature 303.15 K and at atmospheric pressure.
Journal ArticleDOI
Ultrasonic investigations in binary mixtures of some commercial extractants: liquid ion exchanger reagents and tri-n-butyl phosphate
TL;DR: In this article, the velocities, viscosities and densities of the binary mixtures of some commercial solvent extractants liquid ion exchanger LIX 84, LIX 622 and LIX 860 have been experimentally obtained over the entire mole fraction range of the components at 303.15 K.
References
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Journal ArticleDOI
Pressure Coefficients of Acoustic Velocity for Nine Organic Liquids
TL;DR: In this paper, a pressure supersonic interferometer was used to examine nine organic liquids at frequencies a little less than 200 kc and at temperatures varying from 22.7°C to 25.5°C for the various liquids.
Journal ArticleDOI
Die Schallgeschwindigkeiten von Lösungen und ihre Beziehungen zur Schallgeschwindigkeit des gelösten Stoffes
TL;DR: In this paper, an den Schallkennlinien von Losungen ein Extrapolationsverfahren, das die Schallgeschwindigkeit geloster Substanzen zu bestimmen gestattet, entwickelt.
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