Densities and Viscosities of 1-butyl-3-methylimidazolium Hexafluorophosphate [bmim][PF6] ＋ CO2 Binary System： Determination and Correlation

A gas-dissolving device was designed and connected to the falling-body viscometer, which was used to determine the viscosities of liquids in our lab before. The equipment can be used to determine the gas composition, the densities and viscosities of the solution at the same time. The densities and viscosities of [bmim][PF6] ＋ CO2 binary system were determined in the temperature range of 313.2 to 413.2 K and pressure range of 5.0 to 25.0 MPa by the equipment. Then the viscosities of [bmim][PF6] ＋ CO2 binary system at constant temperature, constant pressure, and different temperature and pressure were correlated, respectively. For the correlation at different tempera- ture and different t3ressure for different concentration mixtures the average relative deviation ARD is 0.037.

一台煤气溶解的设备被设计并且与秋天身体粘度计连接了，它被用来以前在我们的实验室决定液体的粘性。设备能被用来同时决定答案的煤气的作文，密度和粘性。密度和粘性[bmim ][PF6 ]+ CO2 二进制系统被设备在 313.2 ～ 413.2 K 的温度范围和 5.0 ～ 25.0 MPa 的压力范围决定。然后粘性[bmim ][PF6 ] 在经常的温度，经常的压力和压力的 + CO2 二进制系统分别地被相关。为在为不同集中混合物的不同温度和不同压力的关联，平均相对偏差 ARD 是 0.037。