摘要
本文引用修正的Rackett方程对纯物质的饱和液体密度进行了预测,共计算了93种纯物质的饱和液体密度,总平均偏差为1.87％(2444个数据点)。其中非极性物质57种,平均偏差为1.71％(1446个数据点),极性物质28种,平均偏差为2.06％(747个数据点),含羟基的化合物8种,平均偏差为2.35％(251个数据点)。其结果基本满足工程设计计算的要求。
This paper correlates saturated liquid densities for polar and nonpolar substances by adopting the modified Rackett equiation. Data for 93 substances have been used to develop relationships for the parameters α and β, on which the adjustable constant Z_(RA) of the modified Rackett equiation depends. For saturated liquid densities for nonpolar, polar and associated polar liquid, the overall average deviation of the estimated value from the experimental for the 93 substances is 1.87% (2444 points).
关键词
饱和
极性物质
非极性物质
液体
saturated liquid, density
polar and nonpolar substances, modified Rackett equiation.
