"Fiery monsters" (a double experiment)
How to combine "Pharaoh’s Serpent" and "Chemical Volcano"
What happens if you cross the experiments “Pharaoh’s Serpent” and “Chemical Volcano”? We present you with a fiery “volcano” with dark green “snakes” crawling out of it. We create real fiery monsters!
Reagents and equipment:
- ammonium nitrate (15 g);
- urotropine (3 g);
- ammonium bichromate(15 g);
- kerosene (1 ml);
- porcelain cup.
For the experiment, we take 15 g of ammonium nitrate, 3 g of urotropine and 15 g of ammonium bichromate, and mix them in a porcelain cup. We put a few drops of kerosene into the “crater of the volcano” and light it with a match. We observe our “volcano” burning and sparking violently, with green curly snakes crawling out of it in all directions.
In the breakdown of ammonium dichromate, nitrogen N₂, water vapor and green chrome oxide (II) Cr₂O₃ form. In the reaction of the thermal breakdown of ammonium nitrate, a colorless gas is released – nitrous oxide N₂0, which even when slightly heated breaks down into oxygen O₂ and nitrogen N₂. The combustion of urotropine gives another gas, carbon dioxide CO₂, and carbonization also takes place – the release of carbon. The large volume of gases, plus the solid products of oxidation – this is the secret of the “snake-like” behavior of the mixture.
Wear protective gloves and glasses. When working with ammonium bichromate, make sure it doesn’t get on your skin – it causes an allergic reaction and is a carcinogen. Keep urotropine away from heat, sparks and open flame, as it is highly flammable. Observe fire safety rules.
Warning! Substances of this experiment are toxic and highly dangerous for your health. Do not try this at home. Only under professional supervision.