This video demonstrates how to make a liquid that turns to ice at the touch of a finger. Must be one of the strangest reactions I’ve ever seen.It looks like the only real ingredient needed other than water is Sodium acetate.

It’s the same principle that is used to create rock candy- the sodium acetate has a much lower melting point than you’d expect (around 60 C), so when it is heated in the water, the solid you see turns to a liquid that ‘blends’ into the water.

On top of this, at a high temperature water can hold much more solute than at lower temperatures, but when you lower the temperature, that solute doesn’t just precipitate out right away, you get a supersaturated solution.

I was wondering on where to use this technique, Suggestions are welcomed readers