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二甲苯与环丁砜混合液粘度和密度测定及关联 被引量：1

Densities and Viscosities for Binary Mixture of the p-Xylene with Sulfolane at Different Temperature
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摘要 在常压下采用U形振动管密度计测定了对二甲苯与环丁砜的混合液在298 15K～353 15K下的密度,用乌氏粘度计测定了此混合溶液在303 15K～353 10K下的粘度,并由密度数据计算出超额体积VE、由粘度数据计算出了不同温度和组成下的混合粘度的变化,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,对混合粘度变化随组成的关系按Redlich-Kister方程进行了关联。 Densities and viscosities of the binary mixture of sulfolane with p-xylene were determined between 30315 to 35315K at atmospheric pressure by using a vibrating U-shaped sample tube densimeter and Ubbelohde suspended-level viscometer respectively.Density values were used in determination of excess molar volume.Viscosities were used to calculated deviations of viscosity.Excess volume and deviation of viscosity were fitted by a multiple regression analysis and Redlich-Kister equation respectively.
作者 周清 马沛生 杨长生
机构地区 天津大学化工学院
出处 《化学工业与工程》 CAS 2004年第1期12-16,共5页 Chemical Industry and Engineering
关键词 密度 粘度 超额摩尔体积 对二甲苯 环丁砜 density viscosity excess molar volume p-xylene sulfolane
分类号 O621.21 [理学—有机化学]
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化学工业与工程
2004年 第1期

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