Simultaneous Determination of Refractive Index and Density of an Evaporating Aqueous Solution Droplet
Simultaneous Determination of Refractive Index and Density of an Evaporating Aqueous Solution Droplet
复制标题
同时测定蒸发水溶液液滴的折射率和密度
DOI：
10.1080/02786829108959527
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发表时间：
1991
影响因子：
5.2
通讯作者：
H. Munkelwitz
中科院分区：
文献类型：
--
作者：
I. Tang;H. Munkelwitz
本文介绍了在25℃下同时测定电解质溶液液滴折射率和密度的实验技术和计算方法。给出了(NH_4)_2SO_4-H_2O、Na_2SO_4-H_2O和NaNO_3-H_2O三种体系从高稀释到临界过饱和度的宽浓度范围的计算结果。结果表明，各电解液的偏摩尔折射率在整个浓度范围内是显著恒定的，从而验证了偏摩尔折射率法预测高饱和溶液折射率的有效性。
The experimental technique and computational method developed for simultaneous determination of refractive index and density of an electrolyte solution droplet undergoing evaporation at 25°C are described. Results are presented for the systems (NH4)2SO4-H2O, Na2SO4-H2O, and NaNO3-H2O over a wide concentration range from high dilution to critical supersaturation. It is shown that the partial molal refraction derived for each electrolyte is remarkably constant throughout the entire concentration region, thereby validating the partial molal refraction approach for predicting the refractive index of highly supersaturated solutions.