Measurements of Vapor Pressures andPVTProperties of Heptafluoropropyl Methyl Ether
Measurements of Vapor Pressures andPVTProperties of Heptafluoropropyl Methyl Ether
复制标题
DOI：
10.1021/je010123e
复制
发表时间：
2001-11
影响因子：
--
通讯作者：
J. Widiatmo;A. Uchimura;T. Tsuge;Koichi Watanabe
中科院分区：
文献类型：
--
作者：
J. Widiatmo;A. Uchimura;T. Tsuge;Koichi Watanabe
测定了七氟丙基甲醚(CF3CF2CF2OCH3，HFe-347mcc)在340K至临界温度(437.7 K)和(370~450K)8条等温线上的蒸汽压和PVT性质。测量中使用了等容池装置，温度、压力和密度的不确定度分别为±10mK、±2kPa和±0.2kg.m-3。根据测量的蒸汽压和其他可获得的数据建立的蒸汽压关联式在±2kpa范围内对当前数据进行了令人满意的描述。测量的PVT性能与报道的状态方程的比较也表明，在±1%的压力和±2.2%的密度范围内，工程应用的一致性令人满意。
Vapor pressures and PVT properties of heptafluoropropyl methyl ether (CF 3 CF 2 CF 2 OCH 3 , HFE-347mcc) have been measured at temperatures from 340 K to the critical temperature (437.7 K) and from (370 to 450) K along eight isochores, respectively. An isochoric cell apparatus was used in the present measurements with uncertainties estimated to be ±10 mK, ±2 kPa, and ±0.2 kg.m -3 in temperature, pressure, and density, respectively. A vapor pressure correlation developed on the basis of the measured vapor pressures in addition to the other available data shows a satisfactory representation of the present data within ±2 kPa. Comparison of the measured PVT properties with the reported equation of state also shows a satisfactory agreement for engineering application within ±1% in pressure and ±2.2% in density.