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