Partial molar volumes of organic solutes in water. XVIII: Selected polyethers(aq) and 3,6-dioxa-1-heptanol(aq) at T = (298 to 573) K and at pressures up to 30 MPa

  • Cibulka I
  • Hnědkovský L
  • Marek T
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Abstract

Density data for dilute aqueous solutions of four aliphatic ethers (2,5-dioxahexane, 3,5-dioxaheptane, 3,6-dioxaoctane, and 2,5,8-trioxanonane) and one ether-alcohol (3,6-dioxa-1-heptanol) 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 either T = 443 K (3,5-dioxaheptane) or T = 573 K (other solutes) and at pressures close to the saturated vapour pressure of water, at pressures between 15 and 20 MPa and at p = 30 MPa. The data were obtained using a high-temperature high-pressure flow vibrating-tube densimeter. © 2007 Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • 2,5,8-Trioxanonane
  • 2,5-Dioxahexane
  • 3,5-Dioxaheptane
  • 3,6-Dioxa-1-heptanol
  • 3,6-Dioxaoctane
  • Aqueous ethers
  • Density
  • High pressure
  • High temperature
  • Partial molar volume

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