Hot ice, scientifically known as sodium acetate, is a liquid that will turn solid at the slightest provocation. Touching it with your finger or bumping it too hard will cause it to spring from a clear, water-like state into solid ice-like crystals.
Make Your Own Salt and Vinegar Chips with Homemade Sodium Acetate
You can supercool hot ice or sodium acetate so that it will remain a liquid below its melting point. You can trigger crystallization on command, forming sculptures as the liquid solidifies. The reaction is exothermic so heat is generated by the hot ice.
Reusable Heat Packs! All of the Body Comfort click and heat packs contain water and food grade sodium acetate (a form of salt). The metal disc inside is made of stainless steel and the outer shell is medical grade plastic. By flexing (not breaking or cracking in half) the stainless steel disc small molecules turn into a solid state which then creates a chain reaction causing the solution to crystallize and instantly heat to a predetermined amount of energy 130 degrees F / 53 degrees C to…