| 碳酸二乙酯-对二甲苯二元物系粘度和密度的测定 |
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| 引用本文： | 冯丽梅,马沛生,相政乐,杨长生. 碳酸二乙酯-对二甲苯二元物系粘度和密度的测定[J]. 石油化工, 2005, 34(10): 965-969 |
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| 作者姓名： | 冯丽梅 马沛生 相政乐 杨长生 |
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| 作者单位： | 天津大学,化工学院绿色合成与转化教育部重点实验室,天津,300072 |
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| 摘 要： | 在常压、298.15~363.15K条件下,对碳酸二乙酯-对二甲苯二元物系采用U形振动管密度计测定其密度,采用乌氏粘度计测定其粘度。并由密度和粘度数据计算该物系的超额体积和超额粘度,同时对不同温度下的超额体积与组成的关系进行了多元回归,对超额粘度与组成的关系按Red lich-K ister方程进行了关联,计算值与实验值的最大标准偏差小于3%。
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| 关 键 词： | 碳酸二乙酯 对二甲苯 二元物系 粘度 密度 超额体积 超额粘度 |
| 文章编号： | 1000-8144(2005)10-0965-05 |
| 修稿时间： | 2005-04-05 |
Determination of Densities and Viscosities for Binary Mixture of Diethyl Carbonate and p -Xylene at Atmospheric Pressure and Different Temperatures |
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| Feng Limei,Ma Peisheng,Xiang Zhengle,Yang Changsheng. Determination of Densities and Viscosities for Binary Mixture of Diethyl Carbonate and p -Xylene at Atmospheric Pressure and Different Temperatures[J]. Petrochemical Technology, 2005, 34(10): 965-969 |
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| Authors: | Feng Limei Ma Peisheng Xiang Zhengle Yang Changsheng |
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| Abstract: | Densities and viscosities of binary mixture consisted of diethyl carbonate and p-xylene were determined between 293.15K and 363.15K at atmospheric pressure by using U-shaped vibrating tube densitometer and Ubbelohde suspended-level viscometer respectively.Density and viscosity data were used in determination of excess volume and excess viscosity.Relationship between excess volume and composition was fitted by multivariate regression.Relationship between excess viscosity and composition was correlated by Redlich-Kister equation.The maximum standard deviations between calculation and experimental values were both lower than 3%. |
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| Keywords: | diethyl carbonate p-xylene binary mixture viscosity density excess volume excess viscosity |
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