Co2O3 + HCl →困唯 Cl2 + CoCl2·6H2O
A B C
CoCl2·6H2O → CoCl2 + 6H2O
D
CoCl2 + HAc + KNO2 → KCl + NO + K3[Co(NO2)6] + H2O
E
CoCl2 + H2O2 + NH3 + NH4Cl → H2O + [Co(NH3)6]Cl3 (活性C催化)汪岩培
F
CoCl2 + NH3 + H2O → Co(OH)2 + NH4Cl
G
Co(OH)2 + Cl2 + OH- →枣信 Co(OH)3 + Cl-
H
Co(OH)3 + H+ + Sn2+ → Co2+ + H2O + Sn4+