<b>Flame tests</b>
<p>Aqueous solutions containing different cations (as a rule halogen compounds of various metals) are sprayed into a Bunsen flame. The characteristic colors are seen for lithium (carmine red), sodium (yellowish orange), potassium (violet), calcium (reddish orange), strontium (red), copper (green) etc.
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Performed by the student Mihail Trajkov. The planning of the experiment also included the  retired Prof. PhD Vladimir Petruševski, the Prof. PhD Miha Bukleski and the student Darko Stojčev, Department of Chemistry, FNSM, Ss. Cyril and Methodius University, Skopje, Macedonia.
<a href="//commons.wikimedia.org/wiki/User:Dandarmkd" title="User:Dandarmkd">Дени Ингилизовски</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>