New, wide-range reference equations for the thermal conductivity of cyclohexane as a function of temperature and density are presented. The equations are based in part upon a body of experimental data that has been critically assessed for internal consistency and for agreement with theory whenever possible. We estimate the uncertainty (at the 95% confidence level) for the thermal conductivity of cyclohexane from the triple point (279.86 K) to 650 K at pressures up to 175 MPa to be 4% for the compressed liquid and supercritical phases. For the low-pressure gas phase (up to 0.1 MPa) over the temperature range 280 K to 680 K, the estimated uncertainty is 2.5%. Uncertainties in the critical region are much larger, since the thermal conductivity approaches infinity at the critical point and is very sensitive to small changes in density.

中文翻译：

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环己烷热导率从三点到 640 K 和高达 175 MPa 的参考相关性

提出了环己烷热导率与温度和密度的函数关系的新的、宽范围的参考方程。这些方程部分基于大量实验数据，这些数据经过严格评估以确保内部一致性并尽可能与理论一致。我们估计在压力高达 175 MPa 时环己烷从三相点 (279.86 K) 到 650 K 的热导率的不确定性（在 95% 置信水平下）为压缩液相和超临界相的 4%。对于 280 K 至 680 K 温度范围内的低压气相（最高 0.1 MPa），估计的不确定性为 2.5%。临界区的不确定性要大得多，因为热导率在临界点接近无穷大，并且对密度的微小变化非常敏感。