| 巴豆酸-溶剂二组分物系密度和黏度的测定 |
| |
| 引用本文： | 任永莲,夏淑倩,马沛生.巴豆酸-溶剂二组分物系密度和黏度的测定[J].石油化工,2007,36(3):267-271. |
| |
| 作者姓名： | 任永莲 夏淑倩 马沛生 |
| |
| 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 |
| |
| 摘 要： | 在常压下,采用U形振动管密度计和乌氏黏度计测定了巴豆酸-苯、巴豆酸-甲苯和巴豆酸-乙酸乙酯二组分物系在298.15~343.15K下的密度和黏度与巴豆酸-丙酮二组分物系在298.15~323.15K下的密度和黏度。采用最小二乘法对二组分物系的密度与温度的关系进行了多项式回归,对不同温度下的对比黏度与溶质巴豆酸浓度的关系由Jones-Doles方程进行了回归。密度计算值与实验值的最大标准偏差为0.000 17,对比黏度计算值与实验值的最大标准偏差为0.025 2。
|
| 关 键 词： | 巴豆酸 苯 甲苯 乙酸乙酯 丙酮 密度 黏度 |
| 文章编号： | 1000-8144(2007)03-0267-05 |
| 修稿时间： | 2006年10月27 |
Measurement of Densities and Viscosities of Crotonic Acid-Solvent Binary Systems |
| |
| Ren Yonglian,Xia Shuqian,Ma Peisheng.Measurement of Densities and Viscosities of Crotonic Acid-Solvent Binary Systems[J].Petrochemical Technology,2007,36(3):267-271. |
| |
| Authors: | Ren Yonglian Xia Shuqian Ma Peisheng |
| |
| Abstract: | Densities and viscosities of binary systems,namely crotonic acid-benzene,crotonic acid-toluene and crotonic acid-ethyl acetate were measured under atmospheric pressure in a temperature range of 298.15-343.15 K by using a vibrating U-shaped tube densimeter and Ubbelohde viscometer.Densities and viscosities of crotonic acid-acetone binary system were measured under atmospheric pressure in a temperature range of 298.15-323.15 K using same devices as above.Relationship of density with temperature at different compositions was correlated by polynomial regression.Relationship of reduced viscosity with solute crotonic acid concentration at different temperatures was regressed by Jones-Doles equation.The maximum standard deviations between calculated and experimental data of densities and reduced viscosities are 0.000 17 and 0.025 2,respectively. |
| |
| Keywords: | crotonic acid benzene toluene ethyl acetate acetone density viscosity |
| 本文献已被 万方数据 等数据库收录！ |
