Mach‐Zehnder Interferometer for Diffusion Measurements in Volatile Liquid Systems
作者:
C. S. Caldwell,
J. R. Hall,
A. L. Babb,
期刊:
Review of Scientific Instruments
(AIP Available online 1957)
卷期:
Volume 28,
issue 10
页码: 816-821
ISSN:0034-6748
年代: 1957
DOI:10.1063/1.1715729
出版商: AIP
数据来源: AIP
摘要:
The constructional details and method of operation of an optical diffusiometer are described. The apparatus makes use of a Mach‐Zehnder‐type interferometer, which has not previously been employed for the study of diffusion in liquid systems. The apparatus has been developed for the study of liquid systems whose components are volatile organic solvents. For this purpose a diffusion cell of novel design has been constructed. The diffusiometer has been checked using the system sucrose‐water at 25°C and values of the diffusion coefficient found over six determinations are within 0.2% of the reported value. With volatile liquids, the accuracy claimed is only 1%, although duplicates usually agreed to within 0.5%.
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