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Chapter: 3 Chemistry
    Section: 3.9 Electrochemistry
        SubSection: 3.9.4 Ionization constant (molal ionic product), Kw, of water at 0-60 °C
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3.9.4    Ionization constant (molal ionic product), Kw, of water at 0–60 °C

°C

1014 Kw

°C

1014 Kw

°C

1014 Kw

  0

0.112

25

0.991

45

3.917

  5

0.182

30

1.439

50

5.297

10

0.288

35

2.042

55

7.080

15

0.465

40

2.851

60

9.311

20

0.671

 

 

 

 

References

A. K. Covington, M. I. A. Ferra and R. A. Robinson (1977) JCS Faraday Trans. I, 73, 1721.
For values at higher temperatures and pressures see: W. L. Marshall and E. U. Franck (1981) J. Phys. Chem.
   Ref. Data, 10, 295.

A.K. Covington

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