How does one obtain a CuCl2 (solid or in solution with water) from a solution with HCl

I have a solution of CuCl2 and with HCl, and I want to seperate CuCl2 from the HCl. I cannot boil or distill the solution, since I don't have a fume hood or access to a safe enough space outdoors. So I need to find a way to get the CuCl2 out of solution, or at least get rid of the HCl in order to boil off the water safely. I can filter out percipitates, if that helps in any way.


Any ideas?


Edit: I reacted small amounts with H2O2 and bubbling air through, and an excess of copper. This worked, but takes far too long. I have access to copper oxides (likely aged), but there was a discussion in the comments about solubility.




Apparently your solution contain $\ce{CuCl2}$ and $\ce{HCl}$. If you want to save only $\ce{CuCl2}$ you should first add an excess of black copper oxide $\ce{CuO}$ and stir at least one hour. The following reaction will consume unwanted $\ce{HCl}$ : $$\ce{CuO + 2 HCl -> CuCl2 + H2O}$$ Then filtrate the solution to get rid of the $\ce{CuO}$ excess. The obtained blue solution contains no $\ce{HCl}$ any more. You may evaporate it to $≤ 100°$C. You should obtain by cooling to room temperature a blue-green hydrated copper chloride $\ce{CuCl2·2H2O}$. But this hydrated copper chloride is not easy to use, because it is deliquescent : it will soon get dissolved in the water attracted from the humidity of the air. It is much better to heat it to a temperature > $110$°C. Heated to between $110$°C and $498$°C, $\ce{CuCl2}$ solutions produce, after evaporation, an anhydrous copper chloride $\ce{CuCl2}$, which is a brownish yellow powder. And this powder is easier to use, because it is only slightly hygroscopic. It slowly attracts water but will not produce a viscous liquid like $\ce{CuCl2· 2H2O}$.


These two copper chlorides are both very soluble in water. At $0$° C, $100$ mL water dissolves $\ce{71 g CuCl2}$ and $\ce{110 g CuCl2·2H2O}$.


$\ce{CuCl2}$ melts at $498$°C, and is decomposed into $\ce{CuCl + Cl2}$ at $993$°C.


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