2Al + 3Cl2 → 2AlCl32AlCl3 + 3H2SO4 → Al2(SO4)3 + 6HClAl2(SO4)3 + 6NaOH → 2Al(OH)3 + 3Na2(SO4)2Al(OH)3 → Al2O3 + 3H2O
2Al + 3Cl2 → 2AlCl3
2AlCl3 + 3H2SO4 → Al2(SO4)3 + 6HCl
Al2(SO4)3 + 6NaOH → 2Al(OH)3 + 3Na2(SO4)
2Al(OH)3 → Al2O3 + 3H2O