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Thermodynamic properties of aqueous solution of 2-isobutoxyethanol atT =  (293.15, 298.15, and 303.15) K, below and above LCST

✍ Scribed by Hideshige Doi; Katsutoshi Tamura; Sachio Murakami

Publisher: Elsevier Science
Year: 2000
Tongue: English
Weight: 234 KB
Volume: 32
Category: Article
ISSN: 0021-9614
DOI: 10.1006/jcht.1999.0645

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✦ Synopsis

Excess enthalpies, excess isobaric heat capacities, densities and sound velocities of (CH 3 ) 2 CHCH 2 OCH 2 CH 2 OH + (1 -x)H 2 O} were measured at T = 293.15 K below, T = 298.15 K near, and T = 303.15 K above the lower critical consolute temperture (LCST). Excess volumes and excess thermal expansivities were estimated from densities, excess isentropic and isothermal compressibilities, and isochoric heat capacities were estimated from density, speed of sound and isobaric heat capacity. Excess isobaric heat capacity and excess thermal expansivity were positive. The other properties, excess enthalpy, excess volume, and excess compressibilities were negative. Excess isobaric heat capacity defined an anomalous curve. Excess volume, excess compressibilities and excess thermal expansivity showed characteristics of aqueous solution of alcohols.

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Thermodynamic properties of aqueous solution of 2-isobutoxyethanol atT&#xa0;=&#xa0; (293.15, 298.15, and 303.15) K, below and above LCST

✦ Synopsis

Thermodynamic properties of aqueous solution of 2-isobutoxyethanol atT = (293.15, 298.15, and 303.15) K, below and above LCST