What temp does freon freeze at?

Answer 1

Refrigerant (freon) does not freeze, at least not at any temperatures one could comprehend let alone encounter here on earth. It is used in cooling/refrigeration systems for it`s favorable boiling temperatures. If that is what you are asking, the answer would depend on a few things, such as type of refrigerant and the temperature and pressure of the vessel containing it. I`ll give an example using R-22 the most common refrigerant used for household cooling systems. At atmospheric pressure at sealevel (0psig/14.7psia). R-22 boils at -60*F, releasing liquid R-22 directly from it`s container would cool whatever surface it came into contact with to this temp and it would create a nasty burn type injury (frostbite) if that surface happens to be your skin. But, in a properly operating a/c system a typical low side pressure would be around 70psig, under this pressure the refrigerant boiling point is raised from from -60*F to +40*F, producing appx 50*F discharge air into the home. For a more detailed explanation see my answer to: How does air conditioning work? on this site.