NAVI F-52 - Page 256

Chapter 16 Reference
16.4 Conductivity measuring
F-52, 53, 54, 55 243
● Conductivity and temperature coefficients for various solutions
The following table shows the conductivity (converted to 25 ºC) and the temperature coeffi-
cient at that time, for various kinds of solution.
Substan
ce
Te mp .
(ºC)
Conc.
(wt%)
Cond.
(S/m)
Temp.
coef.
(%/°C)
Substance Te mp .
(ºC)
Conc.
(wt%)
Cond.
(S/m)
Temp.
coef.
(%/°C)
NaOH 15 5 19.69 2.01 NaCl 18 5 6.72 2.17
10 31.24 2.17 10 12.11 2.14
15 34.63 2.49 15 16.42 2.12
20 32.70 2.99 20 19.57 2.16
30 20.22 4.50 25 21.35 2.27
40 11.64 6.48 Na
2
SO
4
18 5 4.09 2.36
KOH 15 25.2 54.03 2.09 10 6.87 2.49
29.4 54.34 2.21 15 8.86 2.56
33.6 52.21 2.36 Na
2
CO
3
18 5 4.56 2.52
42 42.12 2.83 10 7.05 2.71
NH
3
15 0.1 0.0251 2.46 15 8.36 2.94
1.6 0.0867 2.38 KCl 18 5 6.90 2.01
4.01 0.1095 2.50 10 13.59 1.88
8.03 0.1038 2.62 15 20.20 1.79
16.15 0.0632 3.01 20 26.77 1.68
HF 18 1.5 1.98 7.20 21 28.10 1.66
4.8 5.93 6.66 KBr 15 5 4.65 2.06
24.5 28.32 5.83 10 9.28 1.94
HCl 18 5 39.48 1.58 20 19.07 1.77
10 63.02 1.56 KCN 15 3.25 5.07 2.07
20 76.15 1.54 6.5 10.26 1.93
30 66.20 1.54
− − −
H
2
S0
4
18 5 20.85 1.21 NH
4
Cl 18 5 9.18 1.98
10 39.15 1.28 10 17.76 1.86
20 65.27 1.45 15 25.86 1.71
40 68.00 1.78 20 33.65 1.61
50 54.05 1.93 25 40.25 1.54
60 37.26 2.13 NH
4
NO
3
15 5 5.90 2.03
80 11.05 3.49 10 11.17 1.94
100.14 1.87 0.30 30 28.41 1.68
− − −
50 36.22 1.56
HNO
3
18 6.2 31.23 1.47 CuSO
4
18 2.5 10.90 2.13
12.4 54.18 1.42 5 18.90 2.16
31 78.19 1.39 10 32.00 2.18
49.6 63.41 1.57 15 42.10 2.31
62 49.64 1.57 CH
3
COOH 18 10 15.26 1.69
H
3
PO
4
15 10 5.66 1.04 15 16.19 1.74
20 11.29 1.14 20 16.05 1.79
40 20.70 1.50 30 14.01 1.86
45 20.87 1.61 40 10.81 1.96
50 20.73 1.74 60 4.56 2.06