二元无机溶液的折射分析
Refractometric Analysis of Binary Inorganic Solutions
摘 要
研究了二元无机溶液的折射分析法,得到了联系二元无机溶液浓度、密度和折射率的方程,并用氯化钠溶液和溴化钾溶液对该方程进行了验证.配制了不同浓度的氯化钠溶液和溴化钾溶液各7种,在20 ℃下用阿贝折射仪测定各溶液的折射率和密度.将试验测量的折射率值和该方程的计算值进行了比较,发现两者吻合,最大差值在10-4量级上,在仪器的误差范围内.结果表明:该方程是获得不同浓度的二元无机溶液的折射率的简便而快速的方法.
无机二元系
折射分析
数学方程式
Refractivity (or refractive index)
Binary inorganic solution
Refractometric analysis
Mathematical equation
Abstract
A mathematical equation relating concentration,density and refractivity of binary inorganic solutions was derived,and tested for its validity with aqueous solutions of sodium chloride and of potassium bromide of 7 different concentrations.Refractivity and density of these solutions were determined with the Abbe refractometer and densimeter at 20 ℃.As shown by the comparative study,the values of refractivity (or refractive index) of the binary solutions measured instrumentally were checked very well with the values found by calculation with the equation given,giving maximum deviation at the order of magnitude of 10-4,which is within the precision of the instrument.The proposed equation was valid for calculation of refractive index of binary inorganic solutions of different concentrations.
中图分类号 O44
所属栏目 工作简报
基金项目 北京市教育委员会共建项目建设计划,北京市科技新星计划(952870400),教育部优秀青年教师资助项目的资助
收稿日期 2008/4/3
修改稿日期
网络出版日期
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备注辛督强(1982-),男,陕西凤翔县人,教师,主要从事混合溶液折射率和浓度的研究工作.
引用该论文: XIN Du-qiang,ZHU Ming,XIE Yan-lei,ZHANG Tao. Refractometric Analysis of Binary Inorganic Solutions[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2009, 45(5): 526～528
辛督强,朱民,解延雷,张涛. 二元无机溶液的折射分析[J]. 理化检验－化学分册, 2009, 45(5): 526～528
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参考文献
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【2】FONTAO M J,IGLESIAS M.Effect of temperature on the refractive index of aliphatic hydroxilic mixture (C2-C3)[J].International Journal of Thermophysics,2002,23(2):513．
【3】AUGUSTO G V,PENA G M,GARCIA S C,et al.Dynamic reflectometry near the critical angle for high-resolution sensing of the index of refraction[J].Sensors and Actuators(B),1998,52(3):236．
【4】DE N S,FERRARO P,FINIZIO A,et al.Reflective grating interferometer for measuring the refractive index of transparent materials[J].Opt Commun,1995,118(56):491．
【5】SCHUBERT T,HAASE N,KCK H,et al.Refractive index measurements using an integrated mach-zehoder interferometer[J].Sensors and Actuators A: Physical,1997,60(1/3):108．
【6】曾捷,梁大开,曹振新.光纤SPR传感器测量液体折射率的研究[J].压电与声光,2005(1):18．
【7】SHYAM S.Measuring the refractive index of a liquid using a laser[J].Physics Education,2002(3):152．
【8】SYAM S.Diffraction method measures refractive indices of liquids[J].Physics Education,2004(3):235．
【9】张全法,郭茂田,杨海彬,等.利用CCD测量液体折射率[J].半导体光电,2002,21(3):229．
【10】ZHANG Tao.Effect of magnetic field of light on refractive index[J].China Physics,2004,13(8):1358．
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