应用阿贝折射仪测定四氢呋喃溶液的组成  

Determination the Composition of THF Solutions by Using Refractive Index

作　　者：郑秋霞[1] 梅树莲[1] 周锡堂[1] 

机构地区：[1]茂名学院化工学院,广东茂名525000

出　　处：《四川理工学院学报（自然科学版）》2007年第5期81-83,共3页Journal of Sichuan University of Science & Engineering(Natural Science Edition)

摘　　要：应用阿贝折射仪测量四氢呋喃(THF)溶液的折光率,以确定THF的水及乙醇溶液的组成。研究表明,实验数据与文献值吻合良好:THF与水及乙醇的双组分溶液折光率与组成之间有很好的规律性,前者可以用抛物线关系式描述,后者可以用线性关系式描述,其相关系数R在0.99以上,标准偏差SD在0.0015以下,完全可以应用于相关溶液组成的测定。This paper introduces a method with which the compositions of THF solutions can be determined by measuring their refractive indexes. It has been showed by experiment that there are excellent principles between the refractive indexes of THF solutions and their compositions. The relation between refractive indexes of THF aqueous solution and its compositions can be expressed as a parabola line, and those of THF-C2H5OH solutions and their compositions can expressed as straight lines, with R not smaller than 0.99 and SD not bigger than 0.015, which can be used to determine the compositions of several solutions.

关 键 词：阿贝折射仪 折光率 四氢呋喃 溶液组成 

分 类 号：TQ014[化学工程]