545
Appendix 6
The Colligative Properties of Seawater (S = 35) at One Atmosphere
Salinity
–T f
(°C)
Temp
(°C)
φ
a
p
(mm Hg)
π
(bar)
0
0
0
0.8925
0.9815
4.496
23.54
5
0.274
5
0.8954
0.9814
6.419
24.05
10
0.542
10
0.8978
0.9814
9.036
24.54
15
0.811
15
0.8996
0.9814
12.551
25.02
20
1.083
20
0.9009
0.9813
17.213
25.46
25
1.358
25
0.9017
0.9813
23.323
25.90
30
1.637
30
0.9023
0.9813
31.245
26.31
35
1.922
35
0.9025
0.9813
41.412
26.70
40
2.211
40
0.9025
0.9813
54.329
27.09
Note: T f = freezing point; φ = osmotic coefficient; a = activity of water; p =
vapor pressure; π = osmotic pressure.