| 引用本文: | 陈国华,佘敬曾,郭玲,黄健,朱茜,刘清锐,杨文利.烷烃与海水界面张力的研究.海洋与湖沼,1996,27(2):213-219. |
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| 摘要: |
| 于1991年3月－1992年6月间用液体积法较系统地测定正己烷、正庚烷、正辛烷、异辛烷、正十二烷、正十六烷和煤油与海水在不同的温度（16–40°C）和盐度（10–40）范围内的界面张力，测定值的相对误差≤0.5％。对数据进行统计处理后，归纳出所研究烷烃－海水界面张力与温度和盐度的经验关系式，计算值与实验值相对误差≤0.5％。 |
| 关键词: 烷烃－海水界面 界面张力 经验关系式 |
| DOI： |
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| 基金项目:国家自然科学基金及国家海洋局科技发展基金联合资助项目，49070272号 |
附件 |
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| STUDY ON ALKANE-SEAWATER INTERFACIAL TENSION |
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Chen Guohua, She Jingzeng, Guo Ling, Huang Jian, Zhu Qian, Liu Qingrui, Yang Wenli
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Department of Marine Chemistry, Ocean University of Qingdao, Qingdao 266003
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| Abstract: |
| The respective alkane (n-c6, n-c7, n-c8,i-8, n-c12, n-c16 and kerosene, respectively)-seawater interfacial tension (I.T. ) in the temperature range of 16 - 40 °C and salinity range of 10 - 40 were determined with the drop-volume method by the authors from 1991 to 1992. The relative standard deviation of measured values <=0.5%. Seven empirical equations obtained on the basis of these measurements directly relates the alkanes-seawater I.T. with the temperature and salinity. The results show that all the alkanes-seawater I. T. decrease linearly with the rise of temperature. The salinity coefficient of the (n-c6, n-c7, n-c8, and i-c8)-seawater I.T. is positive, negative for n-c12 or n-c16. A model of adsorption at the alkane-seawater interface is presented for interpretation of this change of I .T. with salinity. |
| Key words: Alkane-seawater interface, Interfacial tension, Experimental equation |
