Bas
2004-02-02 13:17:50 UTC
Hi people,
I'm trying to make copper oxychloride. I read somewhere that it can be made
by dissolving copper in hydrochloric acid (takes a while..) and after that
pumping air through the solution.
First I've tried to solve thin pieces of copper in HCl, which gives a (nice)
green solution, but it took days.
So I thought that dissolving copper carbonate (CuCO3?) in HCl would go MUCH
faster. It dissolved indeed much faster (and gas came free, I suppose CO2).
But.. the solution is blue..(looks like CuSO4 solution, maybe somewhat less
intense blue).
I don't understand. I thought in both cases I would get CuCl2, but why then
the difference in color??
Bas from Holland
I'm trying to make copper oxychloride. I read somewhere that it can be made
by dissolving copper in hydrochloric acid (takes a while..) and after that
pumping air through the solution.
First I've tried to solve thin pieces of copper in HCl, which gives a (nice)
green solution, but it took days.
So I thought that dissolving copper carbonate (CuCO3?) in HCl would go MUCH
faster. It dissolved indeed much faster (and gas came free, I suppose CO2).
But.. the solution is blue..(looks like CuSO4 solution, maybe somewhat less
intense blue).
I don't understand. I thought in both cases I would get CuCl2, but why then
the difference in color??
Bas from Holland