Surface Tension of 1,1,1,2,2,3,3,4,4-Nonafluorohexane and 1,1,2,2-Tetrafluoroethyl-2,2,2-Trifluoroethyl Ether

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  • Tanaka Katsuyuki
    Department of Mechanical Systems and Design Engineering, Iwaki Meisei University
  • Higashi Yukihiro
    Department of Mechanical Systems and Design Engineering, Iwaki Meisei University

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  • １，１，１，２，２，３，３，４，４－Ｎｏｎａｆｌｕｏｒｏｈｅｘａｎｅおよび１，１，２，２－ｔｅｔｒａｆｌｕｏｒｏｅｔｈｙｌ－２，２，２－ｔｒｉｆｌｕｏｒｏｅｔｈｙｌ　ｅｔｈｅｒの表面張力
  • 1 1 1 2 2 3 3 4 4 Nonafluorohexane オヨビ 1 1 2 2 tetrafluoroethyl 2 2 2 trifluoroethyl ether ノ ヒョウメン チョウリョク

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Abstract

The surface tensions of 1,1,1,2,2,3,3,4,4-nonafluorohexane (CF3CF2CF2CF2CH2CH3) and 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoro-ethyl ether (CHF2CF2OCH2CF3), which are potential alternatives to HCFC solvents, were measured by the differential capillary-rise method. 20 data points for 1,1,1,2,2,3,3,4,4-nonafluorohexane and 17 data points for 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether were obtained in the temperature range of 289–348 K. The experimental uncertainties of temperature and surface tension measurements were estimated to be within 20 mK and 0.14 mN·m−1, respectively. Surface tension correlations for 1,1,1,2,2,3,3,4,4-nonafluorohexane and 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether were formulated and were found to reproduce the present data within the limits of experimental uncertainty.

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