In most cases, when stainless steel was in the passive state and acted as the cathode, the contact accelerated copper corrosion. In addition, the area ratio of stainless steel to copper altered copper corrosion behaviour. The larger the area of stainless steel, the greater the acceleration of copper corrosion. Copper is present below hydrogen in the reactivity series of metals. So it does not react with dilute acids like hydrochloric or sulfuric acid. What is the old name of copper oxide? Copper(II) or cupric oxide is an inorganic compound with a CuO formula. A black solid is one of the two stable oxides of copper, the other being Cu2O or copper(I) oxide (cuprous oxide). As a mineral, it is known as a tenorite. While copper oxide is used as the source of copper in mineral and vitamin supplements and is considered safe, its use in medical devices and in industrial and consumer products is novel. Is copper oxide valuable? Cupric Oxide, or CuO, is a precious compound used for many industrial and commercial purposes, including glazing glass, electroplating, catalysts, dyes and pigments, and more. The most common forms of copper oxide are copper (I) oxide and copper (II) oxide. These forms of copper oxide and other states are formed when oxygen combines with copper in different ways. Copper (I) oxide is a reddish powder, whereas Copper (II) oxide is a black powder. The body effectively prevents high levels of the substance from entering the bloodstream. However, people can develop copper toxicity if they eat food served on or prepared with corroded copper cookware, dishes, or utensils. If you are looking for high quality, high purity and cost-effective copper oxide, or if you require the latest price of copper oxide, please feel free to email contact mis-asia.