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Partial molar volumes of organic solutes in water. XVI. Selected aliphatic hydroxyderivatives(aq) at T=(298 to 573)K and at pressures up to 30MPa

By L. Hnědkovský and I. Cibulka

Abstract

Density data for dilute aqueous solutions of two diols (1,6-hexanediol, 2,2-dimethyl-1,3-propanediol) and two polyhydric alcohols (2,2-bis(hydroxymethyl)-1,3-propanediol, 1,2,3,4,5-pentanepentaol) are presented together with partial molar volumes at infinite dilution calculated from the experimental data. The measurements were performed at temperatures from T = 298 K up to T = 573 K and at pressure close to the saturated vapour pressure of water, at pressures between 15 and 20 MPa and at p = 30 MPa. While temperature dependences of partial molar volumes of both diols are monotonous, maxima are observed on the curves for polyhydric alcohols. The data were obtained using a high-temperature high-pressure flow vibrating-tube densimeter

Publisher: 'Cambridge University Press (CUP)'
Year: 2007
DOI identifier: 10.1016/j.jct.2006.09.013
OAI identifier: oai:researchrepository.murdoch.edu.au:32803
Provided by: Research Repository
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