What is Copper(I) Oxide?
Copper(I) Oxide is also called as cuprous oxide an inorganic compound with the chemical formula Cu2O. It is covalent in nature. Copper(I) oxide crystallizes in a cubic structure. It is easily reduced by hydrogen when heated It undergoes disproportionation in acid solutions producing copper(II) ions and copper. When the cupric oxide is gently heated with metallic copper, it is converted into cuprous oxide. It acts as a good corrosion resistance, due to reactions at the surface between the copper and the oxygen in air to give a thin protective oxide layer.
Other names – Dicopper oxide, Red copper oxide, Cuprous oxide
|Molecular Weight/ Molar Mass||143.09 g/mol|
|Boiling Point||1,800 °C|
|Melting Point||1,232 °C|
Copper(I) Oxide Structure – Cu2O
Physical Properties of Copper(I) Oxide – Cu2O
|Heavy Atom Count||3|
|Solubility||Insoluble in water|
Chemical Properties of Copper(I) Oxide – Cu2O
- Copper(I) oxide reacts with water in the presence of oxygen forms copper(II) hydroxide. The chemical equation is given below.
2Cu2O + 4H2O + O2 → 4Cu(OH)2
- Copper(I) oxide reacts with hydrogen chloride forms Copper(I) chloride and water. The chemical equation is given below.
Cu2O + 2HCl → 2CuCl + H2O
Uses of Copper Oxide – Cu2O
- Used in antifouling paints for boat and ship bottoms; it is an effective control over corrosion.
- Used in paints for glass and porcelain.
- Used as a p-type semiconductor material that was used to make photocells for light meters and fabricate rectifiers.
- Used as a fungicide and seed dressing.