The hot ice

British physicist Bridgman studies have shown that under considerable pressure the water passes into the so-called hot ice and remains so at temperatures well above 0 degrees. Thus, the ice can not be of one kind, and several (six). The hot ice turns 20600 atmospheres pressure and remains solid at a temperature of 76 degrees Celsius. But it is impossible to touch him; the hot ice formed under the pressure of a powerful press in a thick-walled pot of the best steel. See and take it in the hand is impossible. Its features physicists opens only indirectly.

The hot ice turns 20600 atmospheres pressure and remains solid at a temperature of 76 degrees Celsius

The density of the hot ice more than usual. It is denser then the water: its specific gravity of 1,05. It sinks in the water, whereas the ordinary, cold ice floating in it.

The above-described hot ice hardly would have made at the home. But, still, you can try to freeze the ice, not bringing it to the freezing temperature and thus get the hot ice. Following the instructions, you can prepare a substance that is similar to the ice, using ingredients bought at the store or at home found. In the experiments, we must be careful.

To make the hot ice, take a little bit of sodium acetate trihydrate and dissolve it as much as possible in the hot, almost boiling water. To do this, take a sodium acetate, and pour it into the pan. To start should be enough for about one cup. Leave it a little in the reserve to be used as a seed crystal.

To make the hot ice, you need to make a supersaturated solution of sodium acetate. Therefore, do not pour too much water - the less you pour it, the thicker the resulting solution and the crystals will turn out better.

Bring the solution to near boiling. Constantly stir it. The solution should be so thick that the powder no longer dissolved and remained small pellet at the bottom of the pan. If the powder is completely dissolved, and there is nothing at the bottom, to add the sodium acetate to the water until the solution is no longer able to completely dissolve the powder.

Then pour the solution into a vessel of any size so that the residue from the insoluble powder did not get into a vessel and remained in the pan. Place the pot with the solution in the freezer for 30-60 minutes. The sodium acetate is supercooled in a supersaturated solution, that is, its temperature falls below the normal temperature of crystallization without of the crystallization process.

As you touch a toothpick to a solution with a small amount of sodium acetate, it hardens on it, forming the hot ice. From it should come warm. This is due to the release of energy in the formation of crystals.