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 journalArticlepeer-review

66 Citations (Scopus)

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
DOIs
Publication statusPublished - 1994 Apr 1

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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