Tools: 1000 ml flask, stopper the tube trench, stand, burner, asbestos net
Chemicals: sulfur powder, iron powder
Procedure: on the stoichiometric mixture of sulfur powder and iron dust with a one-liter flask
stoppered with a trench in the capillary tube pulled Pour boiling water.
If enough mixture (20 g), occurs in a few minutes a vigorous reaction.
Heat released during the exothermic reaction causes boiling water and the steam starts
In a flask with boiling water and live content is greyish brown.
Fe + S --> FeS
Sulfur and iron powder should be mixed well - water has to boil.