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When heated together, copper and sulfur combineto form a sulfide of copper. The excess sulfurvaporizes to form gaseous sulfur, which escapes from thecrucible. When the hot sulfur gas reaches the air, it reactswith oxygen to produce gaseous oxides of sulfur (mainlysulfur dioxide, SO2).
Considering this, does sulfur react with copper?
The copper wire reacts readily with thehot sulfur gas (S8, S4 andS2), forming a dark grey, brittle crystalline solid ofcopper sulfide.
Also to know, why Sulphur is called enemy of copper?
Sulphur is known to destroy the metallicproperties of copper. Sulphur attacks copperto form black spot of Copper Sulphide and hence is knownas 'enemy of copper'. In the presence of sulphur,copper reacts with it to return to its original state ofcopper sulphate which is the natural form ofcopper.
Copper Compounds: In general the soluble ionizedsalts of copper are much more toxic than theinsoluble or slightly dissociated compounds. Sulfides:Sulfides of the heavy metals are generally insoluble andhence have little toxic action except through the liberationof hydrogen sulfide.