Thermodynamic Properties of Dichloromethane, Bromochloromethane, and Dibromomethane under Elevated Pressure: Experimental Results and SAFT-VR Mie Predictions

Miroslaw Chorazewski*, Jacobo Troncoso, Johan Jacquemin

*Corresponding author for this work

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The speeds of sound in dibromomethane, bromochloromethane, and dichloromethane have been measured in the temperature range from 293.15 to 313.15 K and at pressures up to 100 MPa. Densities and isobaric heat capacities at atmospheric pressure have been also determined. Experimental results were used to calculate the densities and isobaric heat capacities as the function of temperature and pressure by means of a numerical integration technique. Moreover, experimental data at atmospheric pressure were then used to determine the SAFT-VR Mie molecular parameters for these liquids. The accuracy of the model has been then evaluated using a comparison of derived experimental high-pressure data with those predicted using SAFT. It was found that the model provide the possibility to predict also the isobaric heat capacity of all selected haloalkanes within an error up to 6%.

Original languageEnglish
Pages (from-to)720-730
Number of pages11
JournalIndustrial and Engineering Chemistry Research
Volume54
Issue number2
Early online date24 Dec 2014
DOIs
Publication statusPublished - 21 Jan 2015

Keywords

  • EXCESS MOLAR VOLUMES
  • DIRECTIONAL ATTRACTIVE FORCES
  • ONE-CARBON SOURCE
  • BINARY-LIQUID MIXTURES
  • 298.15 K
  • ORGANIC-SYNTHESIS
  • PLUS DICHLOROMETHANE
  • PERTURBATION-THEORY
  • ISOTHERMAL COMPRESSIBILITIES
  • CORRESPONDING BINARIES

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