Simple liquid-liquid diffusion coefficient measurement system based on refractive index gradients

Affan Hifzhi, Levin Soedarmawan, Syukur Pambudi, Arief Sudarmaji, Djati Handoko

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)

Abstract

Interdiffusion between two liquids with different refractive index measurement system has been carefully constructed by using laser beam deflection method. The deflection pattern comes from refraction of the beam when it enters the interface of two different refractive index liquids. The diffusion coefficient is determined by observing refractive index gradients of liquid-liquid on the interface. In this phenomenon, mass transfer from liquid to liquid plays an important role and described using the Fick's law. The diffusion experiments have been performed with NaCl-aqueous solution. Interestingly, we found the diffusion coefficient of NaCl in reasonably good agreement with coefficient values specified in the literature. With simple setup and data analysis, we believe that the measurement system can be used to observe mass transfer in liquid accurately.

Original languageEnglish
Title of host publicationProceedings - 2017 International Seminar on Sensor, Instrumentation, Measurement and Metrology
Subtitle of host publicationInnovation for the Advancement and Competitiveness of the Nation, ISSIMM 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages65-68
Number of pages4
ISBN (Electronic)9781538607459
DOIs
Publication statusPublished - 29 Nov 2017
Event2017 International Seminar on Sensor, Instrumentation, Measurement and Metrology, ISSIMM 2017 - Surabaya, Indonesia
Duration: 25 Aug 201726 Aug 2017

Publication series

NameProceedings - 2017 International Seminar on Sensor, Instrumentation, Measurement and Metrology: Innovation for the Advancement and Competitiveness of the Nation, ISSIMM 2017
Volume2017-January

Conference

Conference2017 International Seminar on Sensor, Instrumentation, Measurement and Metrology, ISSIMM 2017
Country/TerritoryIndonesia
CitySurabaya
Period25/08/1726/08/17

Keywords

  • Diffusion
  • Mass transfer
  • Refractive index gradient

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