Canned Heat - Colorful Flaming Gel
When ethanol is poured into a saturated solution of calcium acetate, a gel immediately forms. Spoonfuls of the gel are scooped out and placed on watch glasses. Lithium chloride, sodium chloride, and boric acid are sprinkled over the gel, then the gel is set on fire. As the flame burns, different colors are emitted. Iron filings can also be sprinkled over the flame to see "firework-like" gold sparks.
For more details on our setup, see https://sciencedemonstrations.fas.har...