|Elements used: sulfur and iron filings||Heating the mixture|
|The reaction begins||Rising sulfur vapor|
|The sulfur vapor ignites||The reaction product is not magnetic|
|Photo 1:||5 g iron filings and 5 g sulfur are mixed in a test tube.|
|Photo 2:||The mixture is heated using a Bunsen burner.|
|Photo 3:||The reaction takes place quickly, as soon as the sulfur has melted.
Iron reacts with sulfur in a simple, exothermic reaction to produce iron
Fe + S ® FeS
|Photo 4:||The heat produced vaporizes the sulfur.|
|Photo 5:||Eventually the sulfur vapor ignites and burns with a light blue flame.|
|Photo 6:||The residue that forms is not magnetic.
Iron sulfide reacts with hydrochloric acid to produce hydrogen sulfide and iron chloride:
FeS + 2 HCl® FeCl2 + H2S