Ultrasonic speed of sound and derived thermodynamic properties of liquid 1,1,1,2,3,3,3-heptafluoropropane (HFC227ea) from 248 K to 333 K and pressures up to 65 MPa

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Abstract

This work reports experimental data of the speed of sound in liquid 1,1,1,2,3,3,3-heptafluoropropane (HFC227ea) from 248 K to 333 K and pressures up to 65 MPa, measured with a pulse-echo method. The results are fitted with a rational approximant. Derived thermodynamic properties are calculated, combining our experimental data with density and isobaric heat capacity values published by other authors. The results were compared with the data available in the literature.

Original languageEnglish
Pages (from-to)496-501
Number of pages6
JournalJournal of Chemical and Engineering Data
Volume45
Issue number3
DOIs
Publication statusPublished - 1 May 2000

Keywords

  • Equations of state
  • Refrigerants
  • Mixing rule

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