锟斤拷锟斤拷锟斤拷锟斤拷锟絏

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絴(zh锟斤拷)锟斤拷锟統锟斤拷色锟斤拷锟絕軟锟侥癸拷锟絯锟斤拷锟斤拷(d锟斤拷o)锟�锟斤拷锟斤拷(d锟斤拷o)锟斤拷锟斤拷锟斤拷展锟斤拷

锟斤拷锟斤拷锟絚(di锟斤拷n)燃

锟斤拷锟�锟斤拷诨锟斤拷W(xu锟斤拷)锟斤拷锟絴(zh锟斤拷)锟斤拷Al—3e-==Al3+

锟斤拷锟斤拷a.锟絚锟角斤拷锟劫ｏ拷4Al+3O2==2Al2O3

锟斤拷锟斤拷b锟斤拷锟絚锟结：

锟斤拷锟斤拷2Al+6HCl==2AlCl3+3H2↑锟斤拷2Al+3H2SO4==Al2(SO4)3+3H2↑

锟斤拷锟斤拷锟斤拷锟截筹拷锟斤拷锟斤拷锟斤拷锟絏锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟�(hu锟斤拷)锟絣(f锟斤拷)锟斤拷锟絞锟斤拷锟斤拷锟斤拷锟皆匡拷锟斤拷锟絏锟斤拷锟斤拷锟斤拷盛锟絙锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷c锟斤拷锟絚锟斤拷(qi锟斤拷ng)锟紸锟斤拷

锟斤拷锟斤拷2Al+2NaOH+2H2O==2NaAlO2+3H2↑(2Al+2OH-+2H2O==2AlO2-+3H2↑)

锟斤拷锟斤拷锟竭滐拷

锟斤拷锟斤拷锟斤拷锟斤拷锟�(sh锟斤拷)锟斤拷锟劫诧拷锟絚锟紸锟斤拷锟斤拷(y锟斤拷ng)锟斤拷锟斤拷锟絏锟絪锟斤拷锟斤拷

锟斤拷锟斤拷d锟斤拷锟絏锟结反锟斤拷(y锟斤拷ng)2Al+Fe2O3===2Fe+Al2O3锟斤拷锟絏锟斤拷锟斤拷锟絕锟斤拷(qi锟斤拷ng)锟斤拷還原锟斤拷锟斤拷锟斤拷锟斤拷還原一些锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟絏锟侥伙拷锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷Al2O3(锟斤拷锟酵的冿拷锟斤拷锟斤拷锟斤拷锟斤拷)

锟斤拷锟斤拷a锟斤拷锟絚锟结：Al2O3+6H+==2Al3++3H2O

锟斤拷锟斤拷b锟斤拷锟絚锟紸锟斤拷Al2O3+2OH-==2AlO2-+H2O

锟斤拷锟�锟斤拷锟紸l(OH)3(锟斤拷锟酵的冿拷锟皆氾拷锟斤拷锟斤拷锟斤拷)锟斤拷锟斤拷色锟斤拷锟斤拷锟斤拷水锟斤拷锟絲锟斤拷锟斤拷锟絴(zh锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷a锟斤拷锟斤拷(sh锟斤拷)锟�(y锟斤拷n)锟斤拷锟狡備：

锟斤拷锟斤拷AlCl3+3NH3·H2O==Al(OH)3↓+3NH4Cl锟斤拷

锟斤拷锟斤拷Al3++3NH3·H2O==Al(OH)3↓+3NH4+

锟斤拷锟斤拷b锟斤拷锟絚锟结、锟紸锟斤拷锟斤拷(y锟斤拷ng)锟斤拷

锟斤拷锟斤拷锟絚锟斤拷Al(OH)3+3H+==Al3++3H2O

锟斤拷锟斤拷锟絚锟紸Al(OH)3+OH-==AlO2-+2H2O

锟斤拷锟�锟斤拷锟終Al(SO4)2(锟斤拷锟斤拷锟絏锟�)

锟斤拷锟斤拷KAl(SO4)2·12H2O锟斤拷十锟斤拷水锟斤拷锟斤拷锟斤拷锟絏锟�锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絓

锟斤拷锟斤拷KAl(SO4)2==K++Al3++2SO42-锟斤拷Al3+锟斤拷(hu锟斤拷)水锟解：Al3++3H2OAl(OH)3+3H+

锟斤拷锟斤拷锟斤拷?y锟斤拷n)锟紸l(OH)3锟斤拷锟叫很忥拷(qi锟斤拷ng)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絓锟斤拷锟斤拷锟斤拷锟斤拷水锟斤拷