WP
4
PotentiaMeter
Appendix A
68
Following is a table showing the water potential at
given concentrations of NaCl and KCl at 20°C. Satu-
rated salt solutions are very temperature-sensitive
and their values are not as accurate as the verifica-
tion standards offered by Decagon.
Table 2: Water Potential of NaCl and KCl in
Megapascals (MPa)
Concentration
(Moles/kg)
NaCl KCl
0.05 -0.232 -0.232
0.10 -0.454 -0.452
0.20 -0.901 -0.888
0.30 -1.349 -1.326
0.40 -1.793 -1.760
0.50 -2.242 -2.190
0.60 -2.699 -2.622
0.70 -3.159 -3.061
0.80 -3.618 -3.501
0.90 -4.087 -3.931
1.00 -4.558 -4.372
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