Aluminum reacts with sulfuric acid to produce aluminum sulfate and hydrogen gas according to the following equation
A1 + H2SO4 → Al2(SO4) + H2O
I disagree with the given equation. Aluminum displaces hydrogen only from the acid:
2 Al + 3 H2SO4→Al2(SO4)3 + 3 H2
Alum is KAl(SO4)2.12H2O so it is a sulfate of potassium & aluminum together and it contains water of hydration.
Ali,
Aluminium sulphate is normally produced commercially by reacting Al(OH)3 with H2SO4.
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