Vapor Pressure and P−V−T Measurements for 1,1,1,2,3,3-Hexafluoropropane (R-236ea)
Vapor Pressure and P−V−T Measurements for 1,1,1,2,3,3-Hexafluoropropane (R-236ea)
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DOI：
10.1021/je0000827
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发表时间：
2000-10
影响因子：
--
通讯作者：
Giovanni Di Nicola and;G. Giuliani
中科院分区：
文献类型：
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作者：
Giovanni Di Nicola and;G. Giuliani
用定容池测量了1，1，2，3，3，3-六氟丙烷（R-236 ea）的饱和蒸气压和P-V-T特性。在饱和压力区，温度范围为255 ~ 363 K，压力范围为35 ~ 1269 kPa。结果与修正的Riedel方程拟合。过热蒸汽区的P-V-T测量是沿沿着从313 K到367 K和从275 kPa到914 kPa的四条等容线进行的。对于气相区，第二维里系数计算使用Tsonopoulos和韦伯相关方法。利用奥尔贝和维拉以及韦伯相关方法，还考虑了第三维里系数的贡献。在我们的测量结果中，收集了80个数据点，其中43个和37个，分别为饱和压力和过热区域。通过维里方程将P-V-T测量值与文献中可用的少数数据进行了比较..
A constant-volume cell was used to measure saturated vapor pressure and P−V−T properties for 1,1,2,3,3,3-hexafluoropropane (R-236ea). A temperature range from 255 K to 363 K and a corresponding pressure range from 35 kPa to 1269 kPa were covered in the saturated pressure region. The results were fitted to the modified Riedel equation. The P−V−T measurements in the superheated vapor region were taken along four isochores from 313 K up to 367 K and from 275 kPa up to 914 kPa. For the gas-phase region, the second virial coefficients were calculated using the Tsonopoulos and Weber correlating methods. Using the Orbey and Vera, and the Weber correlating methods, the contribution of the third virial coefficients was also considered. In the results of our measurements, 80 data points were collected, 43 and 37 of which were obtained, respectively, for the saturated pressure and superheated regions. The P−V−T measurements were compared with the few data available in the literature by means of a virial equation of ...