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ENGLISH
– 40 –
Concentra- Conductivity
Substance
tion
10
4
S•cm
-1
NaOH
5
1969
2.01
(15°C)
10
3124
2.17
15
3463
2.49
20
3270
2.99
30
2022
4.50
40
1164
6.48
KOH
25 .2
5403
2.09
(15°C)
29 .4
5434
2.21
33 .6
5221
2.36
42 .0
4212
2.83
NH
3
0. 10
2 .51
2.46
(15°C)
1. 60
8 .67
2.38
4. 01
10 .95
2.50
8. 03
10 .38
2.62
16. 15
6 .32
3.01
30. 5
1 .93
–
HF
1 .5
198
7.20
4 .8
593
6.66
HCI
24 .5
2832
5.83
5
3948
1.58
10
6302
1.56
20
7615
1.54
30
6620
1.52
40
5152
–
H
2
SO
4
5
2085
1.21
10
3915
1.28
20
6527
1.45
40
6800
1.78
50
5405
1.93
60
3726
2.13
80
1105
3.49
100 .14
187
0.30
HNO
3
6 .2
3123
1.47
12. 4
5418
1.42
31 .0
7819
1.39
49 .6
6341
1.57
62 .0
4964
1.57
H
3
PO
4
10
566
1.04
(15°C)
20
1129
1.14
40
2070
1.50
45
2087
1.61
50
2073
1.74
NaCl
5
676
2.17
10
1211
2.14
15
1642
2.12
20
1957
2.16
25
2135
2.27
Concentra- Conductivity
Substance
tion
10
4
S•cm
-1
Na
2
SO
4
5
409
2.36
10
687
2.49
15
886
2.56
Na
2
CO
3
5
456
2.52
10
705
2.71
15
836
2.94
KCl
5
690
2.01
10
1359
1.88
15
2020
1.79
20
2677
1.68
21
2810
1.66
KBr
5
465
2.06
(15°C)
10
928
1.94
20
1907
1.77
KCN
3 .25
507
2.07
6 .5
1026
1.93
NH
4
Cl
5
918
1.98
10
1776
1.86
15
2586
1.71
20
3365
1.61
25
4025
1.54
(NH
4
)
2
SO
4
5
552
2.15
(15°C)
10
1010
2.03
20
1779
1.93
30
2292
1.91
NH
4
NO
3
5
590
2.03
(15°C)
10
1117
1.94
30
2841
1.68
50
3622
1.56
CuSO
4
2 .5
109
2.13
5
189
2.16
10
320
2.18
15
421
2.31
CH
3
COOH
1
5 .84
–
10
15 .26
1.69
15
16.19
1.74
20
16 .05
1.79
30
14 .01
1.86
60
4 .56
2.06
Temperature
coefficient
%/°C
Temperature
coefficient
%/°C
Conductivity and corresponding temperature coefficients of certain substances (25°C)