The critical temperatures and pressures of the binary mixture of 1,1,1-trifluoroethane (HFC-143a) + trans-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)) were measured by a set of apparatus containing an optical cell that has a variable inner volume. The experimental measurements were carried out based on a static method, and the critical properties were determined by means of the observation of disappearance and reappearance of the meniscus. The experimental uncertainties in pressure, temperature, and mole fraction were estimated to be less than 6.2 kPa, 0.02 K, and 0.003, respectively. The experimental critical properties measured in this work were correlated by the Redlich–Kister method, and the correlated results showed a good agreement with experimental data.

中文翻译：

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1,1,1-三氟乙烷 (HFC-143a) +反式-1,3,3,3-四氟丙烯 (HFO-1234ze(E))二元混合物的临界特性测量

1,1,1-三氟乙烷 (HFC-143a) +反式-1,3,3,3-四氟丙烯 (HFO-1234ze(E))的二元混合物的临界温度和压力是通过一套包含具有可变内部容积的光学单元。实验测量是基于静态方法进行的，通过观察弯液面的消失和再现来确定临界特性。压力、温度和摩尔分数的实验不确定性估计分别小于 6.2 kPa、0.02 K 和 0.003。在这项工作中测量的实验临界特性通过 Redlich-Kister 方法相关联，相关结果与实验数据显示出良好的一致性。