³, . , 糿 [17,18]:
= Dj / R (2.1)
Dj - .
:
D = ͷ(Dj / R) (2.2)
- ( 2.1).
2.1 - (E/F)
/ | /() | ||
Ag | 1,1180 | 4,0245 | |
l | 0,0932 | 0,3354 | |
0,5824 | 2,0968 | ||
u | 0,6588 | 2,3715 | |
F | 0,2893 | 1,0416 | |
0,0405 | 1,4586 | ||
Cr | 0.1797 | 0,6468 | |
Ni | 0.3041 | 1,0947 | |
Sn | 0,6150 | 2,2141 | |
Zn | 0,3388 | 1,2195 |
, Dj (2.1):
Dj = j - j (2.3)
糿, " I " - () () , ( 2.1). Dj Dj ( ).
j = j - Dj j = j + Dj : Dj = j - j Dj = j - j | (2.4) (2.5) (2.6) (2.7) |
2.1 -
Dj , Dj 糿. , , . Dj >>Dj , Dj >>Dj - . --- .
= (j - j ) / (R + + ) (2.8)
R- , R0
max = (j - j )/( + ) (2.9)
max- , "" .
- : =Dj /D , , .
: (2.8) , . R, , 糿.
Rp= (RT/nF)(1/ I0) (2.10)
h :
h = Rp ; = h / Rp (2.11)
R - ; - ;
n- ē, 䳿 ; F - ;
I0 - ; - , = I0 /S, A/2; h 0 ( 10 ).
h 䳺 :
(2.12)
- - ,
= (2,3RT/anF) lg I0 (2.13)
= - (2,3RT/anF) (2.14)
- .
糿 Rp [17-22]. , 糿 :
= B/Rp (2.15)
B = ( ) / 2,3( + ) (2.16)
|
|
- , (2.16) [19]. Rp, 糿.
Rp -5035 ( 2.2). 糿 .
³ 糿, . , .
10...35 ( (~80%) = 20).
6.3.1 -5035.
1. ij 5...5000 .
2. ij 0...2000 .
3. 030 .
4. ϳ Rp: 5...50, 50...500, 500...5000 .
5. ϳ : 0...20, 0...200,.0...2000 .
, Rp 糿. , "", :
= /Rp(), / (2.17)
-5035: K1= 272, S = 0,80 2; K2= 1170, S = 3,84 2; ( 3).
40% Rp, - ³ 50 . Rp 5%.
6.3.2 .
1. ϳ : .
2. ( 3) . ( ). ³ ~5 .
3. "max", "min" "ma" . ' , " " . ' !
4. " ", "", "" . "" . .
5. ϳ ( "") 1 ., ( "0,1")
6. R. ( ~), R "0" -; "0" -, .
7. ( "+" "-" ' ). "" "", "" "0" -.
8. Rp, ". " ( ). "R" "0" -. ". " , - "0".
|
|
9. Rp 5 . "R , W" "0,1", "1", "10" ( 2.3). "1" "5" - Rp, ( "0" " 9") Rp.
10. Rp ( "R , W") 10 . 60-90 . Rp .
11. Rp (, ..) .
12. ϳ ( ""). , .
13. Rp().
14. (2.7) 糿 , , , , () ( ).
2.2 - 糿 -5035:
1- - ""; 2- ;
3- R. -R; 4- - : "", "";
5- ; 6- "0,1", "1", "10";
7- Rp - "R , W"; 8--; 9-
2.3 - :
- "0,1", Rp=0,151 = 5,1 ;
- "1", Rp = 1191 = 191 ;
- "10", Rp=10251=2510 .
14. Rp = f (), Rp = f () 㳿 ( 2.4-2.8).
2.2 -
, / | , | Rp, | , / | gc | , / | |||
Cl 2SO4 |
Rp t | Rp pH | Rp C | |
2.4 - Rp= f (t) | 2.5 - Rp= f (pH) | 2.6 - Rp= f (C) | |
gc Rp | lgic 1/T1 1/T2 1/T3 1/T4 1/T×10-3 | ||
2.7 - gc= f (Rp) | 2.8 lgic = f () T1 = 308, 2 = 303, 3 = 298, 4 = 293 | ||
2.4 : , 糿 (l, 2SO4,
(0...2), (20,25,30,35), (0,1...1 /).
, ( ) , gc (7...100, Z=8799%) ( ) (...) 糿. 50...100 /.
2.5
1. ?
2. 糿?
3. ?
4. , 糿?
5. 糿 ?
6. ? ?
7. ?
8. 糿 -5035?
9. ?
10. j j , ? ?
3