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A Demonstration of Refractive Index Matching Using Isopropyl Alcohol and MgF2

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Frederick C. Sauls

Department of Chemistry and Physics, King''s College, Wilkes-Barre, PA 18711

Michael R. Johnson

Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061

J. Chem. Educ., 2006, 83 (8), p 1170

DOI: 10.1021/ed083p1170

Publication Date (Web): August 1, 2006

Abstract

Isopropyl alcohol and MgF₂ have nearly identical refractive indices; thus a chip of MgF₂ disappears when immersed in isopropanol. Addition of water changes the liquid refractive index and causes the MgF₂ to reappear. The demonstration works well in a small beaker on an overhead projector.

Keywords (Audience):

Elementary / Middle School Science

Keywords (Domain):

Demonstrations

Keywords (Feature):

JCE DigiDemos: Tested Demonstrations

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Mathematics / Symbolic Mathematics

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Received: August 03, 2009

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A Demonstration of Refractive Index Matching Using Isopropyl Alcohol and MgF2

Abstract

Keywords (Audience):

Keywords (Domain):

Keywords (Feature):

Keywords (Pedagogy):

Keywords (Subject):

Tools

SciFinder Links

History

Recommend & Share

Related Content

A metal ion complex of vitamin B1: the preparation and structure of Cd(thiamine)Cl3.0.6H2O

Whey Liquid Waste of the Dairy Industry as Raw Material for Potable Alcohol Production by Kefir Granules

Bioactive Compounds from Peperomia pellucida

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