Supercooling Water: How To Keep Liquid Below Freezing

  • Thread starter Thread starter MindRafter
  • Start date Start date
  • Tags Tags
    Water
AI Thread Summary
Supercooling water involves cooling it below its freezing point without it turning into ice, achieved by maintaining purity and minimizing disturbances. Dissolving substances like salt lowers the freezing point but does not constitute supercooling. The process requires a clean container and gradual cooling to prevent crystal formation. Understanding the distinction between supercooling and freezing point depression is essential. Proper techniques can allow water to remain liquid even at sub-zero temperatures.
MindRafter
Messages
13
Reaction score
0
How is it possible to supercool water, so that it remains liquid even below freezing point?
 
Physics news on Phys.org
you can disolve things like salt into it.
 
No, that isn't supercooling, that's actually lowering the freezing point.

Supercooling is when you cool the water below freezing, but it is so pure and so undisturbed that there is nowhere for crystals to start forming. So having a clean container and doing it slow is pretty important.

http://www.Newton.dep.anl.gov/askasci/gen01/gen01672.htm
 

Thread 'Derivation of Hamilton's Principle: Questions'

I have recently been really interested in the derivation of Hamiltons Principle. On my research I found that with the term ##m \cdot \frac{d}{dt} (\frac{dr}{dt} \cdot \delta r) = 0## (1) one may derivate ##\delta \int (T - V) dt = 0## (2). The derivation itself I understood quiet good, but what I don't understand is where the equation (1) came from, because in my research it was just given and not derived from anywhere. Does anybody know where (1) comes from or why from it the...
View full post »

Similar threads

Make solid ice from supercooled water?
Replies
4
Views
2K
Why does salt reduce the freezing point of water?
Replies
5
Views
7K
Why does water freeze differently when leaves are present on a shelter roof?
Replies
9
Views
1K
Can a NaCl (aq) solution have a supercooling effect?
Replies
9
Views
2K
A Which liquids do not supercool?
Replies
2
Views
1K
Mars: estimations about its colonization - liquid water issue
Replies
4
Views
2K
B Does movement affect H2O freezing temperature?
Replies
16
Views
5K
Bottle of supercooled water + agitation = some ice and water
Replies
1
Views
3K
Water Freezing in Space: Debunking the Myth of Instant Boiling and Freezing
Replies
13
Views
4K
Supercooled Liquid: What is it & How Does it Become Glass?
Replies
2
Views
2K

Hot Threads

Recent Insights

Back
Top