Figure 6. Emission spectra and photographs from the flame tests of lithium chloride (LiCl) and sodium chloride (NaCl)

From

An Experimental Introduction to Basic Principles of the Interaction of Electromagnetic Radiation with Matter

Patrick Schairer, Stephan Wagner, Ekkehard Geidel

World Journal of Chemical Education. 2018, 6(1), 29-35 doi:10.12691/wjce-6-1-6