| 对二甲苯＋环己烷及对二甲苯＋二甲基亚砜的固液相平衡和过量吉布斯自由能 |
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| 引用本文： | 车冠全,黄钟奇,罗三来,云逢存,邹永匡.对二甲苯＋环己烷及对二甲苯＋二甲基亚砜的固液相平衡和过量吉布斯自由能[J].高等学校化学学报,1994(9). |
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| 作者姓名： | 车冠全 黄钟奇 罗三来 云逢存 邹永匡 |
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| 作者单位： | 中山大学化学系 |
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| 摘 要： | 测定了对二甲苯＋环己烷及对二甲苯＋二甲基亚砜体系（均为简单低共熔混合物）的固液平衡相图，计算出它们在３１３．１５Ｋ的过量吉布斯自由能。结果表明两体系对理想溶液均产生正偏差。
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| 关 键 词： | 相图，固液平衡，过量吉布斯自由能 |
Solid-Liquid Phase Equilibria and Excess Gibbs Free Energies for p-Xylene+Cyclohexane,p-Xylene+Dimethyl Sulfoxide |
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| CHE Guan-Quan,HUANG Zhong-Qi,LUO San-Lai,YUN Feng-Cun,ZOU Yong-Kuang.Solid-Liquid Phase Equilibria and Excess Gibbs Free Energies for p-Xylene+Cyclohexane,p-Xylene+Dimethyl Sulfoxide[J].Chemical Research In Chinese Universities,1994(9). |
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| Authors: | CHE Guan-Quan HUANG Zhong-Qi LUO San-Lai YUN Feng-Cun ZOU Yong-Kuang |
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| Abstract: | Melting temperatures have been measured and the solid-liquid phase diagrams were constructed for p-xylene+cyclohexane,and p-xylene+ dimethyl sulfoxide.They are simple eutectic systems.Eutectic temperatures and compositions are 240. 96 K, 0.825 and 280.99K, 0.53O for(1-x)p-C6H4(CH3)2+xC6H12 and(1-x)p-C6H4 (CH3) 2+x (CH3) 2SO,respectively. Excess molar Gibbs free energies were calculated at 313.15 K.The largest values of are 233.7 and 1224. 8/mol for(1-x)p-C6H4 (CH3) 2+xC6H12 and (1-x)pC6H4(CH3)2+x (CH3) 2SO, respectively,showing positive deviations from ideal-solution behvior.The latter deviation is very large,especially. |
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| Keywords: | Phase diagram Solid-liquid equilibria Excess Gibbs free energy |
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