Can calcium chloride be a gas?

1 Answer
Mar 16, 2017

It can, but not at ordinary temperatures. On a quick google search, one finds the normal boiling point of #"CaCl"_2# to be #1935^@ "C"#, or #"2208.15 K"#, i.e. at #"1 atm"#.

If you really wanted to find #"CaCl"_2(g)#, you'd have to place it in an extremely hot flame, and you won't be able to easily achieve that.

For example, a propane torch generates flames generally around #"2268 K"#, while an oxyacetylene combustion generates a flame temperature up to around #"3573 K"#. Ordinary candles are around #"1373 K"#.