In this new experiment we are going to make hot ice instantly. In this reaction that you will see, it passes from a liquid to a solid state instantaneously, in a reaction in which crystals are also formed in a very showy way. This reaction is also exothermic, which means that it releases heat, and when done immediately, it is used in blankets and heat pads. This reaction is also reversible, that is to say that once it has happened, if you return to heat the solution you will be able to do it again.
Experiment materials
In this experiment it has been used:
1) Sodium Acetate It is the salt of acetic acid. In principle, it is not a toxic product (it is a food additive for preservation.) Enter the link to get it.
2) Water.
3) Beaker. Any other glass vessel is also valid.
Process Experiment Making Hot Ice Step by Step
The process for the hot ice experiment is as follows:
STEP 1: We heat 200ml of water until boiling. When it is boiling we add 200 grams of sodium acetate. So much sodium acetate is added as the boiling water is able to dissolve. If the 200 grams of water is not able to dissolve them, add a little more water.
STEP 2: Once all the sodium acetate has dissolved in water, put the solution in the beaker, and let it cool, up to about 40º.
STEP 3: We introduce a pointed element, it can be a finger, a glass rod, a screwdriver. If you wet it earlier in a few spots of sodium acetate, the better. You will see how the solid structure is formed instantaneously.
-Glass rod with sodium acetate speckles
-We introduce the rod in the solution
-Hot ice begins to form
-Solid structure formed
Theoretical explanation:
Let's see the theoretical explanation that occurs in this reaction. This reaction is based on the melting point of sodium acetate. This point is at 54º. That is, at 54º or less, sodium acetate is solid. However, when you heat and cool it slowly, it stays in its liquid form and only requires a small disturbance so that it instantly becomes solid.
