Freezer Liquid
Most recent answer: 10/22/2007
Q:
I am looking for a chemical to use in a freezer down to -10F. I want to leave this liquid in the freezer all the time and stick a thermometer in this liquid to get a quick measurement of the temperature. The liquid can be viscous, but not solid. It should be non-toxic. Do you have any ideas?
- Steve
TX
- Steve
TX
A:
Sure, good old ethanol (ethyl alcohol) should do fine. Of course it’s
toxic if you drink too much of it, or if you slug down the pure stuff,
but I think that’s not the sort of toxicity you were worried about.
If you have trouble finding pure lab ethanol, just start with cheap vodka. Let the freezer get it as cold as it’s going to get. Throw out the water ice that will form. What’s left is a solution concentrated enough to stay liquid in your freezer.
Mike W.
If you have trouble finding pure lab ethanol, just start with cheap vodka. Let the freezer get it as cold as it’s going to get. Throw out the water ice that will form. What’s left is a solution concentrated enough to stay liquid in your freezer.
Mike W.
(published on 10/22/2007)