| ω , % | ( ) |
| Zn | 5*103 | ZnS ( ); ZnCO3 (); ZnO () |
| Cd | 5*105 | CdS (); CdCO3 () |
| Hg | ~ 4,5*106 | HgS (); |
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Ͳ Ҳ
| Zn | Cd | Hg | |
| (% ) | 64(48,89) 66(28,81) 67(2,07) 68(18,61) 70(0,62) | 106(1,215) 108(0,875) 110(12,39) 111(12,75) 112(24,07) 113(12,26) 114(28,86) 116(7,58) | 196(0,146) 198(10,0) 199(16,8) 200(23,1) 201(13,2) 202(29,8) 204(6,9) |
| , | 9,3941 | 8,9939 | 10,4376 |
| , | 0,09 | 0,27 | 0,19 |
| 1,66 | 1,46 | 1,44 | |
| +2 | +2 | +1; +2 |
48
Ͳ Բ-ղ̲Ͳ Ҳ
| Zn | Cd | Hg | |
| ( ) | () | ||
| -- | - | - | |
| , ρ, /3 (293 ) | 7,133 | 8,650 | 13,546 |
| , 0 | 419,73 | 321,1 | 38,72 |
| , 0 | 356,73 |
ղ̲Ͳ Ҳ Ҳ -
49
ֲ
| , | ||
| E | , t | , |
| H2, | ||
| Hal, t (Hg I2 ) | EHal2 | |
| O2(Hg ~ 3000C) | EO | |
| S, t (Hg ) | ES | |
| N2 | ||
| P, t | E3P2 | |
| C |
50
ֲ ²
| , | ||
| H2O | ||
| HCl () | ECl2 ( Hg) | |
| HF () | EF2 ( Hg) | |
| HNO3 () | E(NO3)2 | |
| HNO3 () | Zn, Cd → E(NO3)2; Hg → Hg(NO3)2, Hg2(NO3)2 | |
| H2SO4 () | ESO4 (Hg) | |
| H2SO4 () | ESO4 | |
| 3HCl + HNO3 | ECl2 | |
| NH3(), t | E3N2 ( Hg) | |
| NaOH, t | Zn → Na2[Zn(OH)4] |
51
ò ֲ IJ
Ҳ I-B
|
| |
| Zn | 1) ̳ ; . 2) , . 3) , ; 15 . 4) , , , . |
| Cd | 1) , . 2) . |
| Hg | 1) HgCl2 ( 0,3 ), , . 2) , , . 3) . |
|
|
|
-
52
