1 500 / 5 Cr6+ 2.5 /. 1, 10 3 -17-8, 50% . 4 3 15 /. 2 . 1-2 , 4 . 2 1 Cr6+ 500 /. 2 4. 15 /. 100 Cr6+. 2 5 . 500 / Cr6+, . 2 , 4 . 1. .
1
V, | D, | m (Cr6+), 100 | C (Cr6+), / | . Cr6+, | |
: |
, 1:
, (1)
V - , ;
0 - - , /;
i i- , /.
2:
, (2)
V - , ;
0 - - , /;
1, 2, , n 1-,
2-, , n- , /.
,
3:
, /3 (3)
- , ;
Vi - , 3.
-17-8
-17-8 10%- NaOH. 50 . 1-5 /. 10 . 300÷500 .
|
|
( ) Cr6+ 4 -:
, (4)
V - , ;
i i- , /.
i- 5:
(5)
- , ;
m.. - , .
2.
2
V, | D, | m (Cr6+), 100 | C (Cr6+), / | . Cr6+, | Z, % | |