-DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD□□□□□□□1 □□□□□□□□□□□□□□□□□□□□□□□□□□□□□2 □□□□□□□□□□□□□□□□□□□□3 □□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□:1□□□□□□□□□□□□□□□□□□□□□□□□□□□2□□□□□□□□?□□□□aaaaaaaaDDDDDDDDDDDDDD[IZZIIZZII1DDDFe2+ClDFe2+DDDFe3+DDDDD2a(II)DDaaaaDDKSCNDDDDDD(IIaaaaaaa[Fe(SCN)]3-nDDDDDDn)□aaaaaaaaFe3++nSCN-二[Fe(SCN)]3-n(n=l~6naaaaaKSCNDDD)(IIaaaCI2aaaa)□aaaaaaaa(NH)Fe(42(IISO)aa42)□aaaaa-DDDDDDDDDDDDDaaaaaaaaaFe2+DDDDDDDDDaaaaaaaaFe(OH)DDDDFe(OH)DDD22aaaaaaaaaDDDDDDDDDDDDDaaaaaaaaFe(OH)DDDDDDaaa3Fe2+dDaaaaDDDDDDDDDDDDDaaaaaaaaaaaaFe(OH)・2Fe(OH)DD23aaaaaaamL6molL-iaaaaFe2++2OH-二 Fe(OH)(DD)2DNaOHDaaaa4Fe(OH)+O+2HO=4Fe(OH)2223aaaaaaaaIZZIIZZIIZZIIZZIIZZIaaaaaaaaaC02+Dciaaaaa2(II)DDaaaaaaaaaaaaaaC\1I—1+IZZIOIZZIOIZZIIZZIaaaa.DDa.Co2+?DDDDDNaOHDDDCoCiaa2NaOHDDDDDDDDDD-DDDDDDDDDDDDDDDDaaaaCo(OH)CMNaOHDDDDNaOHDDaaaaCo(OH)a2aaaaaaaNaOHCoCl+2NaOH 二 Co(OH)+2NaCl22aaaaaaaaab.Co(OH)DDDDDDDDD2aaaaaaaaDDDDDDDDDDDDDaaaaaaCO(OH)a2aaaab.aaac.aaClDDDDDDD2CIa2aaaa4Co(OH)+O+2HO=4Co(OH)(D2223aaaaaaaa)aaaaa2Co(OH)+Cl+2NaOH=2Co(OH)+223c.aaCI22NaClaaaaaaaaaaaaa.Ni2+?dDa.Ni2+?DNaOHDDDDDDD(II)DDDDDDDaaNaOHDDDNi2o+2OH=Ni(OH)2Nisoaa4DDDDb.Ni(OH)DDDDDDDDD2aaaDDc.DDDDDDClDDDD2NaOHDDb.DDDNi(OH)DDDNi(OH)DDD23aaaaDDDDDDaaaaDDDD2Ni(OH)+Cl+2NaOH=2Ni(OH)+223aaaaDD2NaClaaac.aaCI2aaaaaaaaaaaaCI2aaaaaaaaaaaaaaaaaaaaDDDDDDDDDDFe(OH)>Co(OH)>Ni(OH)DFe2+222aDDDDDDC02+DNi2+DDDDDDDDDDDDDDaaaaaaaaaaaa.Fe(OH)3a.Fe(OH)DDDDDDDDD3aaaaaaaaaDDD(IIFe(OH)Co3aaKITb.Co(OH)DNi(OH)DDDD33I)O(OH)aaaaaDDDDDDCo3+aNi3+aaaaNiO(OH)aaaDDDDDDDDDDDDD(IIaaaab.Co(OH)N3DDDDDDDDClDDKI-2I)aaaai(OH)aa3DDDDDDDaaaaaaaaaFe(OH)+3HC1 二 FeCl+3HO332(IIKI-aaKI-DDD2CoO(OH)+6HCl=2CoCl+Cl+4H222I)aaaaaaaaOaaaa2NiO(OH)+6HCl=2NiCl+Cl+4H222IZZIIZZIaaO-DDDDDDDDDDDDD-DDDDDDDDDDDDDaaaaaD2DFeCl3FeClaa3Fe3oaaaai-aaIaaa2aaaaaaaKI1aaCCIaaaa24aKIaaaaa2Fe3++2I-=2Fe2++I2aaaaaaaaaCCIa4aaaaaaaaCCIaaa4aaCCIa4aaaaaa...
