12SO42SO4AlAl2O3Al(OH)3Fe2+Fe3+Fe3+FeCuFe2+,Fe2+Cl2KMnO4Fe3+2Na2O2H2NaOH2AI+2NaOH+2H2O=2NaAlO2+3H2Fe3+SCN-Fe3+SiO2HFSiF4,HFCI2FeFeCI3,CI2H2SO4HNO33()::22SO4Cl-AgNO3HNO3;SO42-BaCl24SO2HNO3NONH4ClCa(OH)2NH3NH3Al(OH)3492100%:?NaOHaqHClaqA.12B.13C.32D.11AlNaOHAlHClAl1NaOHapHClapAlAl-3e==Al3+22Al6e-3H22AlDAl4.625mlA.B.2.24LC.D.AlAlNaHCO3Al2O3Mg(OH)2Al(OH)3A.B.C.D.90%11234(2)(3)99%(4)()(5)2009331331