折光率法测定四氢呋喃溶液的组成  

Determination of composition of THF solutions by using refractive index

作　　者：周锡堂[1] 樊栓狮[1] 梁德青[1] 

机构地区：[1]中国科学院广州能源研究所

出　　处：《中国测试技术》2007年第1期15-17,共3页CHINA MEASUREMENT & TESTING TECHNOLOGY

基　　金：广东省自然科学基金项目(1036996)

摘　　要：应用阿贝折射仪测量THF(四氢呋喃)溶液的折光率,以此确定THF溶液的组成。实验研究表明,测试数据与文献值吻合良好;THF与水、乙醇及甲醇的两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,后两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,完全适合用于相关溶液组成的测定。This paper introduced 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,THF-CH3OH solutions and their compositions can expressod as straight lines,with R not smaller than 0.99 and SD not bigger than 0.015, which can be used to determine the eomvositions of several solutions.

关 键 词：阿贝折射仪 折光率 THF溶液 组成 

分 类 号：TQ014[化学工程]