Answer to Question #69686 in Inorganic Chemistry for Robin

Question

Hi, I have been given impure malachite and I need to create CuO. I don't know what other components are present, probably silica, some aluminum, and maybe sulfates. I know just heating pure malachite should give me CuO, but how do I separate the CuO from other components. I was thinking dissolving in acetic acid, boiling it off to get copper acetate, and then heating the copper acetate to get back to CuO. But I I'm not sure how much CuO will dissolve in acetic acid. Do you have any suggestions? Thank you.

Answer 1

Malachite can contain various elements of SiO2 P2O5 CaO and metals. In order to obtain pure CaO, it is necessary to know what is contaminated by a small hit