Chapter 16. Lab III-2 Compare Refractive Indices of Glass and Plastic Specimens

Equipment and Materials

You’ll need the following items to complete this lab session. (The standard kit for this book, available from, includes the items listed in the first group.)

Materials from Kit

  • Goggles

  • Beaker, 100 mL

  • Forceps

  • Magnifier

  • Pipettes

  • Slides, deep-cavity

Materials you Provide

  • Gloves

  • Isopropanol or acetone

  • Microscope

  • RI matching fluids (from Chapter 14)

  • Specimens: glass and plastic (see text)


Glass and plastic fragments have sharp edges and may cut you. Handle them with forceps. Isopropanol is flammable. As a matter of good practice, you should always wear splash goggles, gloves, and protective clothing when working in the lab. ...

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