A Demonstration of Refractive Index Matching Using Isopropyl Alcohol and MgF2

• Frederick C. Sauls ^[1]
  1. [1] Department of Chemistry and Physics, King''s College (Wilkes-Barre), United States
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 83, Nº 8, 2006, pág. 1170
• Idioma: inglés
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• Resumen

  • 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.