Aluminium sulfate Wikipedia
Production In the laboratory. Aluminium sulfate may be made by adding aluminium hydroxide, Al(OH) 3, to sulfuric acid, H 2 SO 4: 2 Al(OH) 3 + 3 H 2 SO 4 Al 2 (SO 4) 3 + 6H 2 O. or by heating aluminum metal in a sulfuric acid solution: 2 Al + 3 H 2 SO 4 Al 2 (SO 4) 3 + 3 H 2 From alum schists