.
Cu2+ .
, Cu2+, . 3-4 , 2 5 ( Cu2+ CuO).
(6 ) NH4Cl, , . , 3-4 . 8-10 . - .
Hg2+ , , SnCl2 .
Cd2+ .
2+ .
Ni2+ .
.
.
1. NH4OH, 2-3 , . | ||
2. (I) CoOHCl, [HgNH2]Cl 2 H2SO4 | 3. (I): [u(NH3)4]2+, [Ni(NH3)6]2+, [Cd(NH3)4]2+ 2 H2SO4 , 2 Na2S2O3, | |
4. (II) [HgNH2]Cl HNO3 Hg2+ c KI . | 5. (II) SO4 × Co2+ NH4SCN (NH4)2[Co(SCN)4]. | |
7. (III) Ni2+ Cd2+. Ni2+ , NH4OH . Cd2+ Na2S2O3 H2S. | ||
6. (III) CuS 2 HNO3 Cu2+ c NH4OH |
10-12 , 20 , , 2-3 . (I) CoOHCl . (I) : [u(NH3)4]l2, [Ni(NH3)6]Cl2, [Cd(NH3)4]Cl2.
(I) 5-6 , CoOHCl , . (II) . (II) 2+ , , 5 . 6-8 , Hg2+
|
|
u2+. (I) 10 , ( ) , 1-2 , 2-3 , 3-4 . Ni2+ Cd2+ . , . . , Cd2+ Ni2+, . Cd2+, Ni2+.
9
: ,