Method 2 continuation

Step 6- Stir the aqueous solution till all the solid compounds are completely dissolved.

Step 7-  Begin to cool the beaker in an ice bath or you can keep the beaker in the refrigerator.

When the solution has finished cooling it becomes 'super-cooled' which means that it went below its temperature of freezing without actually solidifying.

Step 8- Now add a pinch of sodium acetate trihydrate crystals (which you had obtained from the pan earlier) onto the solution.

At first begin with just a pinch then 2 and if there still isn't any effect taking place then you will have to add a larger amount of the crystals into the aqueous
solution.





Step 9- Now that you have added the sodium acetate crystals into the super-cooled solution of sodium acetate you will notice the solution solidifying.

This is as a chain of reaction is set off when the crystals came in contact with the liquid.







Step 10- The crystals are releasing energy  when the reaction is taking place thus the solidified solution will radiate heatof an estimate of 130 degrees Celsius or 54 degrees Fahrenheit.










There will be a problem with the solution if the reaction doesn't occur. You could try once again but a better solution would be to do the experiment with Store bought Sodium Acetate. 

Method 2

Homemade Sodium Acetate Method

Step 1- You will need to add baking soda ( not baking powder) onto a pan.
An Approximate of 6 tablespoons would be good.










Step 2- Now you will be required to add White Vinegar onto the baking soda until it stops fizzing.
An estimate of 2 liters of vinegar should do the job.

  Step 3- Boil the solution till about an approximate of 90 percent of the water solution has evaporated.

The solution will be ready when you will be able to notice the formation of a crusty film on top of the water solution.

The solution will appear as slight yellow or brown. This indicates that the solution is a more concentrated solution of sodium acetate trihydrate.



Step 4- As the solution finishes boiling down you will be able to notice sodium acetate crystals left sticking onto the bottom of the pan. Pour the solution into a beaker carefully and you must not pour the crystals into the beaker.
Use a spoon to collect the crystals as you will be needing the crystals for later on in the experiment. Do not let the film on the top of your solution get developed or thickened as this indicates that another reaction is occurring stating that your experiment is ruined.

Step 5- After you have moved the solution into a beaker (of your choice) add 2 tablespoons of vinegar into the solution.
The solution will not solidify due to the vinegar keeping the solution in its aqueous form.

Continuation of Method 1

Step 6- Put the glass beaker in the refrigerator for about 30 minutes to maximum and hour tops.
The temperature in which the solution is saturated is brought down.
In general the crystals are supposed to crystallize when brought below this point but as the sodium acetate is in a supersaturated liquid state it super-cools
 This indicates that it will not crystallize even when it goes below its normal temperature.

Step 7- Pour out the liquid into a container, beaker or tray.

The solution must not be spilled or come in contact with the sodium acetate trihydrate powder.









Step 8- You can either add a pinch of powder onto the solution by hand or you can use a toothpick

The liquid solution will automatically as soon as it come in contact with the sodium acetate powder.

When the 'seed crystal' is introduced into the solution, a nucleation center has been created resulting to solidification being triggered.




Step 9- The solid in the tray will be radiating heat due to the crystals releasing energy in the reaction.

The solid will radiate heat of approximately 54 degrees Celsius or 130 degrees Fahrenheit.

Two Methods of making Hot ice

There are two ways in which hot ice can be created. The two methods in which sodium acetate can be made are either by using the Store bought Sodium Acetate Trihydrate method or by following the Homemade Sodium Acetate Trihydrate method provided below. 

Method 1: Store bought Sodium Acetate Trihydrate

Step 1- You will need to obtain sodium acetate Trihydrate.

This material will not be easy to acquire even though it is a nontoxic and inexpensive ingredient. 

The best way to get the material is to purchase it online.  

Step 2- Scoop the sodium acetate and place it in a pan. It will be in powder form in most cases but at times it will be gel-like as it has just been removed from the pan.

An approximate of a cup of powder would be good and leave some of the powder out of the pan  in order that it can be used as a seed crystal later. 

Step 3-  Add enough water onto the pan so that the sodium acetate will dissolve.

Do not add too much water onto the pan as you will need to supersaturate the sodium acetate water solution.

So the less amount of water added will result to a more dense solution and better crystal formation. 

Step 4- Now you will need to dissolve the sodium acetate thirhydrate crystals (as much as possible) in hot (almost boiling) water.

Stir the mixture constantly resulting the powder to dissolve into a liquid. 

There should be a bit of the powder left in the end. This is the undissolved powder left at the bottom of the pan.

It is essential and a must that the solution be stirred at this point and you will need to add the powder solution as much as possible.

Step 5- After that you will need to pour out the solution into a glass beaker (of your choice). 

It is required that the undissolved powder does not enter the glass beaker and that it remains at the bottom of the pan. 

History

Since the discovery of Sodium acetate was probably an accident it would be difficult to pin point the exact date, location, person and time as per its invention. The best guess is that its discovery was made in ancient times by someone who mixed ashes from a fire with vinegar by accident.

The acetic acid or vinegar was what led to the discovery of the first know to be Hot ice. When vinegar mixed with the ashes it helped prepare leather. This solution was know as sodium acetate. 

Sodium Acetate Trihydrate

Hot Ice also known as Sodium Acetate Trihydrate is a chemical which can be prepared from substances used in everyday cooking.Vinegar and baking soda are the two components that combine together to form the substance known as Sodium acetate.
This substance is know as 'Hot Ice' as it somewhat resembles 'water ice' or solidified water and due to the generation of heat when it crystallize.
It is known as Hot ice as it is in a solid state but like no other this type of ice is generates out heat waves.

Sodium Acetate Thihydrate is a white crystalline at room temperature and melts into a liquid form at 324 degrees Celsius. The boiling point of hot ice is 881.4 degrees Celsius and its density is 1.53g/cm³. Sodium acetate trihydrate has a molar mass of 82.0343g/mol

You can super-cool sodium acetate or hot ice in order for it to remain in a liquid state below its melting point. The crystallization can be activated on command, thus forming sculptures as the liquid solution solidifies.This reaction is exothermic hence heat is generated from the hot ice.

Hot Ice has multiple names. There are various ways of saying it.
The IUPAC name for is Sodium Acetate.
The Systematic name for is Sodium Ethanoate
The Other names are Hot ice or Sodium Acetate Trihydrate

The Chemical Formula for Sodium Acetate Trihydrate is C2H3NaO2.
Sodium Acetate abbreviated as NaOAc, also known as Sodium Ethanoate is the sodium salt of acetic acid.