- water freezes at a lower temperature
than it melts, because supercooling and freezing nuclei are necessary
for the formation of ice
- typical nucleation thresholds (freezing
points, in 0 oC):
| pure water |
-40 +/- 2 |
| tap (filtered) water |
-2.5 |
| silty water |
-1.0 to -1.5 |
| water with needles or leaves |
-1.0 |
|
