… Copper mattes; cement copper (precipitated copper). …
Explanatory notes
… 74.01 ‑ Copper mattes; cement copper (precipitated copper). (A) Copper mattes. This is … mass, with a dull, metallic appearance. (B) Cement copper (precipitated copper). Cement copper (precipitated copper) is a product obtained by precipitation (cementation), i.e., by adding iron to the …