What color does brass jewelry become when oxidized?

What color does brass jewelry turn into after oxidation? Brass materials can be used to make all kinds of jewelry. The oxidation of jewelry is also a very troublesome thing. So what kind of color will brass jewelry generally show when it is oxidized? Let the jewelry factory share with you below. Right. Brass ornaments will produce patina when oxidized at room temperature, that is, basic copper carbonate, which is green; when heated and oxidized, it will produce copper oxide, which is black; it may also be oxidized to cuprous oxide, which is brick red. Under normal circumstances, during the production process of brass jewelry, due to technological requirements, for copper parts that have just been processed or polished, if the surface is not treated in time for oxidation protection, it will take a few hours or three times slower. Within five days, the brass jewelry will be oxidized, discolored, and the surface will be rusted and other oxidation phenomena. The previous production process used anti-rust oil or dip anti-rust oil on brass ornaments to achieve the purpose of anti-oxidation. Its principle is a complete chemical reaction process, environmentally friendly, colorless, odorless, transparent liquid, does not evaporate at room temperature, and cannot change the size and appearance of the brass surface. After the passivation treatment of brass jewelry passivation solution, the salt spray test can be increased to more than 24 hours, and it will not be oxidized or discolored for more than two years in the natural state. The above is the analysis of the color of the brass jewelry that the jewelry factory has compiled for you. I hope it will be helpful to you.