AlCl3-Al(Oh)3-Al2O3-Al2(SO4)3-Al(Oh)3-Al(Oh2cl)
1. AlCl₃ + 3NaOH = Al(OH)₃ + 3NaCl 2. 2Al(OH)₃ =(t°)= Al₂O₃ + 3H₂O 3. Al₂O₃ + 3H₂SO₄ = Al₂(SO₄)₃ + 3H₂O 4. Al₂(SO₄)₃ + 6NaOH = 2Al(OH)₃ + 3Na₂SO₄ 5. Al(OH)₃ + HCl = Al(OH)₂Cl + H₂O