Densities at pressures up to 20 MPa and thermal conductivities at 0.1 MPa of 1-butyl-3-methylimidazolium tetrafluoroborate + methanol mixtures

Daisuke Tomida, Tsuyoshi Odashima, Kun Qiao, Chiaki Yokoyama

研究成果: Article査読

2 被引用数 (Scopus)

抄録

In this study, we report densities and thermal conductivities for 1-butyl-3-methylimidazolium tetrafluoroborate + methanol mixtures. The densities were measured using a vibrating tube densimeter over the temperature range 293–333 K and at pressures up to 20 MPa. The expanded uncertainty in the density measurements was 0.22% (k = 2). The experimental values were correlated with a Tait equation with an average absolute deviation of 0.10%. The transient short hot-wire method was used to measure the thermal conductivities over the temperature range 295–335 K at 0.1 MPa. The expanded uncertainty in the thermal conductivity measurements was 4.4%. The thermal conductivities of the 1-butyl-3-methylimidazolium tetrafluoroborate + methanol mixtures increased in an approximately quadratically with increasing methanol mass fraction. The experimental values were correlated with a Jamieson equation with an average absolute deviation of 0.24%.

本文言語English
ページ(範囲)299-310
ページ数12
ジャーナルHigh Temperatures - High Pressures
47
4
出版ステータスPublished - 2018

ASJC Scopus subject areas

  • 凝縮系物理学
  • 材料力学
  • 物理化学および理論化学

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