2Al + 6H2O = 2Al(OH)3 + 3H2↑
2Al(OH)3 =t= Al2O3 + 3H2O
Al2O3 +3H2SO4 = Al2(SO4)3 + 3H2O
Al2(SO4)3 + 6NaOH = 2Al(OH)3↓ + 3Na2SO4
Al(OH)3 + KOH = KAl(OH)4
2Al + 6H2O = 2Al(OH)3 + 3H2↑
2Al(OH)3 =t= Al2O3 + 3H2O
Al2O3 +3H2SO4 = Al2(SO4)3 + 3H2O
Al2(SO4)3 + 6NaOH = 2Al(OH)3↓ + 3Na2SO4
Al(OH)3 + KOH = KAl(OH)4