Volumes of aqueous alcohols, ethers, and ketones to T = 523 K and p = 28 M Pa

Mitchell D. Schulte, Everett Shock, Marek Obšil, Vladimir Majer

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Densities of dilute aqueous solutions of isopropanol, 1,5-pentanediol, cyclohexanol, benzyl alcohol, diethyl ether, 1,2-dimethoxyethane, acetone, and 2,5-hexanedione were measured by means of a vibrating-tube flow densimeter at temperatures near T = (302, 373, 423, 473, and 521) K at a pressure of p = 28 MPa At the lowest and highest temperatures, measurements were also made close to the saturation vapour pressure of water to investigate the effect of pressure on the volumes of solutes. Apparent molar volumes were calculated for each solute and extrapolated to give partial molar volumes at infinite dilution. The variation of the volume with temperature, pressure, and structure of solute is discussed qualitatively, and group contributions are determined at the temperatures of measurements and p = 28 MPa Several equations proposed in the literature for correlating the partial molar volumes at infini te dilution as a function of state parameters are tested. Parameters of one selected equation are tabulated allowing calculation of the partial molar volumes at infinite dilution at temperatures and pressures up to T = 573 K and p = 40 MPa, respectively.

Original languageEnglish (US)
Pages (from-to)1195-1229
Number of pages35
JournalJournal of Chemical Thermodynamics
Volume31
Issue number9
StatePublished - 1999
Externally publishedYes

Fingerprint

Ethers
Ketones
ketones
Density (specific gravity)
ethers
alcohols
Alcohols
Dilution
dilution
solutes
Cyclohexanols
Benzyl Alcohol
Temperature
2-Propanol
Pipe flow
Acetone
Vapor pressure
Temperature measurement
Ether
densimeters

Keywords

  • Aqueous solution
  • Contribution method
  • Density
  • Organic compound
  • Partial molar volume
  • Temperature correlation
  • Vibrating tube

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Volumes of aqueous alcohols, ethers, and ketones to T = 523 K and p = 28 M Pa. / Schulte, Mitchell D.; Shock, Everett; Obšil, Marek; Majer, Vladimir.

In: Journal of Chemical Thermodynamics, Vol. 31, No. 9, 1999, p. 1195-1229.

Research output: Contribution to journalArticle

Schulte, Mitchell D. ; Shock, Everett ; Obšil, Marek ; Majer, Vladimir. / Volumes of aqueous alcohols, ethers, and ketones to T = 523 K and p = 28 M Pa. In: Journal of Chemical Thermodynamics. 1999 ; Vol. 31, No. 9. pp. 1195-1229.
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