Measurements of the (p, ρ, T) relation of ethylene, ethane, and sulphur hexafluoride in the temperature range from 235 K to 520 K at pressures up to 30 MPa using an accurate single-sinker densimeter

被引：26
|
作者：
Claus, P [1 ]
Kleinrahm, R [1 ]
Wagner, W [1 ]
机构：
[1] Ruhr Univ Bochum, Lehrstuhl Thermodynam, D-44780 Bochum, Germany
来源：
JOURNAL OF CHEMICAL THERMODYNAMICS | 2003年 / 35卷 / 01期
关键词：
ethylene; ethane; sulphur hexafluoride; (p; rho; T); data; density measurements; single-sinker densimeter;
D O I：
10.1016/S0021-9614(02)00356-7
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Comprehensive (p, rho, T) measurements on pure ethylene (83 values), pure ethane (168 values), and pure sulphur hexafluoride (220 values) have been carried out in the homogeneous gas and liquid phases for temperatures from 235 K to 520 K at pressures up to 30 MPa. The measurements were performed by means of an accurate single-sinker densimeter based on the Archimedes' buoyancy principle. The total uncertainty of the measurements in density p was estimated to be +/-(0.02 to 0.025)%. The measurements have been compared with results of other experimentalists and with values calculated from current equations of state. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：159 / 175
页数：17
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