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Leméry's volcano

   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 leaking pipe. 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.

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