Saturated-liquid densities and vapor pressures of 1,1,1-trifluoroethane, difluoromethane, and pentafluoroethane

Januarius V. Widiatmo, Haruki Sato, Koichi Watanabe

Research output: Contribution to journalArticle

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Abstract

Saturated-liquid densities and vapor pressures of HFC-143a (1,1,1-trifluoroethane), HFC-32 (difluoromethane), and HFC-125 (pentafluoroethane) were measured by a magnetic densimeter coupled with a metallic bellows in the range of temperatures from 220 to 340 K. The experimental uncertainties for temperature, pressure, and density measurements are estimated to be not greater than ±15 mK, ±10 kPa (for HFC-143a) or ±2 kPa (for HFC-32 and HFC-125), and ±0.2%, respectively. The purities of HFC-143a, HFC-32, and HFC-125 used in the present measurements are 99.0 mol %, 99.998 mass %, and 99.8 mass %, respectively.

Original languageEnglish
Pages (from-to)304-308
Number of pages5
JournalJournal of Chemical and Engineering Data
Volume39
Issue number2
Publication statusPublished - 1994 Apr

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Density of liquids
Bellows
Pressure measurement
Vapor pressure
Temperature measurement
Temperature
Uncertainty
pentafluoroethane
difluoromethane
1,1,1-trifluoroethane

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

Saturated-liquid densities and vapor pressures of 1,1,1-trifluoroethane, difluoromethane, and pentafluoroethane. / Widiatmo, Januarius V.; Sato, Haruki; Watanabe, Koichi.

In: Journal of Chemical and Engineering Data, Vol. 39, No. 2, 04.1994, p. 304-308.

Research output: Contribution to journalArticle

Widiatmo, Januarius V. ; Sato, Haruki ; Watanabe, Koichi. / Saturated-liquid densities and vapor pressures of 1,1,1-trifluoroethane, difluoromethane, and pentafluoroethane. In: Journal of Chemical and Engineering Data. 1994 ; Vol. 39, No. 2. pp. 304-308.
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