How to Make Hot Ice That Magically Freezes at Room Temperature

Here’s a simple experiment you can try at home that produces a unique substance called sodium acetate from baking soda and vinegar. It’s also often referred to as “hot ice” because at room temperature it forms crystals just like ice does—but without the need for a freezer.


It’s arguably a more fascinating experiment than the traditional miniature volcano, unless you don’t have the patience to work through all the necessary steps.

[YouTube via Likecool]



Back in high school, I was in cross country.
After a meet, my legs were sore, so I used some Icy Hot.
After using said Icy Hot, my legs still hurt (After all, I had just run 2 miles in about 13.5 minutes over the river and through the woods... Or something like that)

Anyways, still in pain, so I took a bath.... A hot bath.

Turns out, that isn’t the “right” thing to. Because, and this is important: Icy Hot is kind of greasy. And when you take a hot bath, greasy stuff comes off a bit, and floats on the water..... And redistributes. In this particular instance, it redistributed to other, more sensitive areas of my body which I would not purposefully cover in Icy Hot.

And the thing about Icy Hot, is that it is really formulated to last for hours. Hours of having Icy Hot on my more sensitive bits.

So now, decades later, this is all I can think of when hearing the phrase “Hot Ice”, even when it is accompanied by a pretty cool video.