Thread: Is hot ice possible?

hey guys, im the first time joining this kind of forum.
hmm.. and here is a problem to me.
im trying to do this experiment but i tried it for lots of time.
but i just cant figure it out why it doesnt works.
anyone can answer me?
or this is not possible?

here is a link for the steps to make the hot ice.
http://video.about.com/chemistry/How...ke-Hot-Ice.htm

Thanks

if you mean ice a a temperature above 0 C ,yes , under extreme pressure.
look up the phase diagram of water.

not really in an extreme temperature.
juz normal temperature.
i tried lots of times.
but it juz not working.
and im wondering what's wrong.
hahahah~~

There are a few things that can look very like ice and be hot, there are also many things you can add to water to make it stay as ice at higher temperatures. Under normal circumstances with pure water this shouldn't be possible.

Having looked at the video there seems to be nothing fundamentally wrong with the idea, thought I don't know if it actually works (well) using those chemicals.

Originally Posted by fizzlooney

if you mean ice a a temperature above 0 C ,yes , under extreme pressure.
look up the phase diagram of water.

High pressure would favour the liquid form of H2O.

Originally Posted by Gargar

There are a few things that can look very like ice and be hot, there are also many things you can add to water to make it stay as ice at higher temperatures. Under normal circumstances with pure water this shouldn't be possible.

Having looked at the video there seems to be nothing fundamentally wrong with the idea, thought I don't know if it actually works (well) using those chemicals.

hmmm..
can i know what kind of things that added to water and make it stay as ice at higher temperatures?

Having looked at the video you provided, I can tell you that the "hot ice" made in the demonstration is not actually ice (solid water). The woman mixes sodium bicarbonate and acetic acid which react (acid-base reaction) to form sodium acetate, water, and carbon dioxide.

She then boils off most of the water to create a supersaturated solution of sodium acetate. Pouring the solution agitates the system causing crystals of sodium acetate to form. Although the crystals look like ice, they are really nothing more than solid crystals of sodium acetate.

Originally Posted by gc

Originally Posted by fizzlooney

if you mean ice a a temperature above 0 C ,yes , under extreme pressure.
look up the phase diagram of water.

High pressure would favour the liquid form of H2O.

sorry - fizzlooney is more correct in this instance ...

the water phase diagram is well known, and widely available on the net -
eg:
http://www1.lsbu.ac.uk/water/phase.html

it shows not only the various forms of high- and ultra-high -pressure ices,
but also the triple points, and the supercritical fluid phase of water ...