4Al+3O₂=2Al₂O₃
Al₂O₃+3H₂SO₄=Al₂(SO₄)₃+3H₂O
Al₂(SO₄)₃+₆KOH=3K₂SO₄+2Al(OH)₃
2Al(OH)₃=(t)Al₂O₃+3H₂O
Al₂O₃+6HCl=2AlCl₃+3H₂O
2Al₂O₃=4Al+3O₂
4Al+3O₂=2Al₂O₃
Al₂O₃+3H₂SO₄=Al₂(SO₄)₃+3H₂O
Al₂(SO₄)₃+₆KOH=3K₂SO₄+2Al(OH)₃
2Al(OH)₃=(t)Al₂O₃+3H₂O
Al₂O₃+6HCl=2AlCl₃+3H₂O
2Al₂O₃=4Al+3O₂