Flame Tests

Cations can be identified by characteristic colors, when a compound containing the cation is heated in a burner flame.  The purpose of this demonstration is to show the colors and to associate them with the cation in the compound.

Concepts:  Emission spectra, flame tests

Time Required:  15 minutes

Chemicals Needed:  BaCl₂, CaCl₂, CuCl₂, SrCl₂, NaCl, KCl