作者：周锡堂^1,2,3, 樊栓狮¹, 梁德青¹

作者单位：1. 中国科学院广州能源研究所, 广东广州 510640;
2. 中国科学院研究生院, 北京 100049;
3. 茂名学院化工学院, 广东茂名 525000

关键词：阿贝折射仪; 折光率; THF溶液; 组成

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。

Determination of composition of THF solutions by using refractive index

ZHOU Xi-tang^1,2,3, FAN Shuan-shi¹, LIANG De-qing¹

1. Guangzhou Institute of Energy Conversion, Chinese Academy of Science, Guangzhou 510641, China;
2. Graduate School of Chinese Academy of Sciences, Beijing 100049, China;
3. School of Chemical Engineering, Maoming University, Maoming 525000, China

Abstract: 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 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.

Keywords: Abbe refractor; Refractive index; THF Solution; Composition

2007, 33(1): 15-17  收稿日期: 2006-7-25;收到修改稿日期: 2006-9-28

基金项目: 广东省自然科学基金项目(1036996)

作者简介: 周锡堂(1964-),男,湖南安化人,副教授,博士研究生,主要研究方向:气体水合物及相关分析检测。

参考文献

[1] Michael S,Emmanuel B,Jacob B.A Model for Estimating Bulk Refractive Index from the Optical backscattering Ratio and the Implications for Understanding Particle Composition in case I and case II Waters[J].Journal of Geophysical Research,2001,106(7):14129-14142.
[2] 五洲咨询中心. 四氢呋喃市场调研报告. 五洲化工线. www.yrinfo.com/Report435.htm.2005,12/2006,2.
[3] Lugauer H,Fischer F,Litz T.Composition and Temperature Dependence of the Refractive Index in Cd_1-xMg_xTe Epitaxial Films[J].Semiconductor Science and Technology, 1994,(9):1567-1569.
[4] 张鹤凌,曾照华,李艳玲.中国化工产品大全(第3版)[M]. 北京:化学工业出版社,2005:153-167.
[5] 编委会.化工百科全书(第9卷)[M].北京:化学工业出版社,1998:153-167,729-749.
[6] GB/T 8238-1987,不饱和聚酯树脂液体和浇注体折光率的测定[S].