# Can calcium chloride be a gas?

It can, but not at ordinary temperatures. On a quick google search, one finds the normal boiling point of ${\text{CaCl}}_{2}$ to be ${1935}^{\circ} \text{C}$, or $\text{2208.15 K}$, i.e. at $\text{1 atm}$.
If you really wanted to find ${\text{CaCl}}_{2} \left(g\right)$, 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 $\text{2268 K}$, while an oxyacetylene combustion generates a flame temperature up to around $\text{3573 K}$. Ordinary candles are around $\text{1373 K}$.