WARNING! This experiment is dangerous! You should NOT perform this at home. ONLY carry out this experiment, if you are a trained chemist, and you understand local safety and legal requirements, which are required to perform such experiments
- Prepare а mixture of powdered iron and sulfur in weight ratio 7:4.
- Put some glass wool to the test tube opening.
- Fix the test tube on a stand.
- Gently heat the test tube with a gas burner.
- The mixture starts to glow.