PVTx property measurements for difluoromethane + pentafluoroethane (R32 + R125) in the gaseous phase

Mitsuru Mukoubayashi, Kengo Ichikura, Haruki Sato

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Abstract

PVTx property measurements in the gaseous phase for difluoromethane (1) + pentafluoroethane (2) (R32 + R125) at x1, = 0.25 (w1 = 12.62 %), x1 = 0.5 (w1 = 30.24 %), and x1 = 0.75 (w1 = 56.53 %) are reported. The measurements were performed by means of a magnetic suspension densimeter. 298 PVTx values for R32 + R125 mixtures were obtained over the range of temperatures (283 to 313) K and at pressures up to 2.4 MPa including the region near saturation. The experimental uncertainties are estimated to be 10 mK for temperature, 0.76 kPa for pressure, (0.03 % + 0.005 kg·m-3) for density, and 0.18 % for mole fraction. The purities of R32 and R125 were both 99.99 %. The measurements are compared with the available data including existing equations of state.

Original languageEnglish
Pages (from-to)1930-1932
Number of pages3
JournalJournal of Chemical and Engineering Data
Volume52
Issue number5
DOIs
Publication statusPublished - 2007 Sep 1

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ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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