Hot ice is made using sodium acetate, which is a salt created from the reaction between sodium bicarbonate (baking soda) and acetic acid (vinegar).
Hand in Hot Ice
When this reaction occurs, sodium acetate appears to freeze like ice as the cold solution turns from liquid to solid. This is an exothermic process, meaning that the solid structure is warm to the touch.
How to Make Hot Ice
Credits: NurdRage
Hot Ice Sculptures
Credits: IBBL Biobank