Viscosity of CHF3 in the critical region

C. Yokoyama, M. Takahashi

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


The gaseous viscosity of trifluoromethane (CHF3) was measured in the critical region. The experimental temperature range was between 299.150 and 303.150 K and the pressure range was up to 5.66 MPa. The measurements were obtained with an oscillating-disk viscometer, combined with local determination of the density at the position of the oscillating disk, and they have an estimated accuracy of 0.6% for the viscosity and 0.5% for the gas density. The viscosity of CHF3 exhibits an anomalous increase near the critical point. The anomalous increase in viscosity was analyzed with the viscosity equation proposed by Basu and Sengers.

Original languageEnglish
Pages (from-to)1369-1385
Number of pages17
JournalInternational Journal of Thermophysics
Issue number6
Publication statusPublished - 1997 Nov
Externally publishedYes


  • Critical anomaly
  • Mode-coupling theory
  • Trifluoromethane
  • Viscosity

ASJC Scopus subject areas

  • Condensed Matter Physics


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