ISSN:
1572-9567
Keywords:
alcohols
;
aqueous mixtures
;
butanols
;
compressibility
;
ethanol
;
excess volume
;
high pressure
;
methanol
;
propanols
;
specific volume
;
Tait equation
;
water
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The specific volumes of C1-C4 alcohols and binary mixtures of water with methanol, ethanol, 1-propanol, 2-propanol, and 2-methyl-2-propanol are presented as functions of temperature, pressure, and composition. The measurements were carried out using a modified Adams piezometer and a high-pressure burette method in a temperature range from 283.15 to 348.15 K at pressures up to 350 MPa. The uncertainties in the specific volume obtained are estimated to be less than 0.09%. The specific volumes of the pure alcohols and their mixtures with water are found to decrease monotonously with increasing pressure. The numerical P-V relations at each temperature and composition are correlated satisfactorily as a function of pressure by the Tait equation. Definite inflections appear on the isobars of isothermal compressibility or partial molar volume versus composition of alcohol + water mixtures.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00503224
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