Density, viscosity, and surface tension of water plus ethanol mixtures from 293 to 323 K
Density, viscosity, and surface tension of water plus ethanol mixtures from 293 to 323 K
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DOI：
10.1007/s11814-011-0239-6
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发表时间：
2012-06-01
影响因子：
2.7
通讯作者：
Jouyban, Abolghasem
中科院分区：
文献类型：
--
作者：
Khattab, Ibrahim Sadek;Bandarkar, Farzana;Jouyban, Abolghasem
液体的密度、粘度和表面张力是影响溶液传质和传热的重要物理化学性质。报道了293、298、303、308、313、318和323K下水和乙醇二元混合物的密度、粘度和表面张力，并与现有文献数据进行了比较。这些比较的结果表明，不同实验室的测量数据是如何重现的。还利用测量的密度值计算了水和乙醇混合物的摩尔体积。数据的数学关联采用Jouyban-Acree模型。以相对偏差(Rd)为误差标准，在所研究的温度下，密度、粘度、表面张力和摩尔体积数据的Rd值分别为0.1+/-0.1%、10.4+/-9.5%、4.2+/-3.6%和0.3+/-0.3%。用298K下的实验数据对训练后的物性进行预测，密度、粘度、表面张力和摩尔体积数据的对应RDS分别为0.2+/-0.2%、14.1+/-15.8%、5.4+/-4.6%和0.4+/-0.3%。研究表明，Jouyban-Acree模型可以关联/预测不同温度下混合溶剂的物理化学性质，计算误差可以接受。
Density, viscosity, and surface tension of liquids are important physicochemical properties which affect mass and heat transfer in solutions. The density, viscosity, and surface tension of binary mixture of water+ethanol at 293, 298, 303, 308, 313, 318, and 323 K are reported and compared with the available literature data. The findings of these comparisons show how the measured data are reproducible from different laboratories. The molar volume of water+ethanol mixtures are also calculated using measured density values. The Jouyban-Acree model was used for mathematical correlation of the data. The relative deviation (RD) was used as an error criterion and the RD values for correlation of density, viscosity, surface tension and molar volume data at investigated temperatures are 0.1 +/- 0.1%, 10.4 +/- 9.5%, 4.2 +/- 3.6%, and 0.3 +/- 0.3%, respectively. The corresponding RDs for the predicted properties after training using the experimental data at 298 K are 0.2 +/- 0.2%, 14.1 +/- 15.8%, 5.4 +/- 4.6% and 0.4 +/- 0.3%, respectively, for density, viscosity, surface tension, and molar volume data. This study shows that the Jouyban-Acree model can correlate/predict physicochemical properties of the mixtures of solvents at different temperatures with acceptable error in calculation.