Al—>Al(OH)3—>AlCl3—>Al2(SO4)3—>Al(OH)3—>Al2O3

Al = Al2O3 = Al2(SO4)3 = Al(OH)3 = Al2O3 = Al 4 Al + 3 O2 = 2 Al2O3 Al2O3 + 3 H2SO4 = Al2(SO4)3 + 3 H2O Al2(SO4)3 + 6 NaOH = 3 Na2SO4 + 2 Al(OH)3 2 Al(OH)3 = Al2O3 + 3 H2O 2 Al2O3 = 4 Al + 3 O2

Al₂(SO₄)+6NaOH=2Al(OH)₃+3Na₂SO₄Al(OH)₃+3HCl=AlCl₃₃+3H₂O2AlCl₃+3CaSO₄=Al₂(SO₄)+3CaCl₂Al₂(SO₄)₃+6KOH=2Al(OH)₃+3K₂SO₄2Al(OH)₃+Fe₂O₃=AL₂O₃+2Fe(OH)₃