Watch an AMAZING potion rainbow!
Alka-seltzer rainbow of colors!
We created an amazing color-changing potion using the alka-seltzer rainbow lab! This could be used in a magic show to show color changing potions and the sublimation occurring.
Chemistry connection: When the alka-seltzer tablet is dropped into the distilled water, the carbon dioxide bubbles float to the top. This is sublimation! The sodium bicarbonate and citric acid react together to make carbonic acid and carbon dioxide. The acid reacts with the sodium hydroxide and then the solution will be more acidic and poof! The colors start to change!
Really fun color changes!
Watch the bubbles at the top form from the alka-seltzer tablet. It went from blue.....
The base becomes more acidic and the color changes. Color is a physical property.
Remember to take some safety precautions though!
1) Wear goggles
2) Wear close-toed shoes
3) Keep your hair up
4) Commit to pouring the ingredients
5) Have fun!