Copper(I) Oxide (Cu2O) is a red or brownish solid compound with unique semiconductor properties. It finds applications in catalysis, solar cells, and gas sensing due to its ability to undergo redox reactions. As a p-type semiconductor, it contributes to photovoltaic devices' efficiency and serves as a photocathode material. Copper(I) Oxide's distinctive properties enable its utilization in a wide range of electronic and energy-related technologies.
features：Insoluble in water and alcohol, soluble in hydrochloric acid, ammonium chloride, ammonia, slightly soluble in nitric acid.
Dissolved in hydrochloric acid to produce white cuprous chloride crystalline powder.
Encounter dilute sulfuric acid and dilute nitric acid to form copper salt. It turns blue quickly in the air.
Soluble in concentrated alkali, ferric chloride and other solutions. Gradually oxidizes to black copper oxide in wet air. Toxic!
Applications:
Used in the manufacture of ship bottom anti-fouling paint (used to kill low-grade Marine animals), pesticides, as well as various copper salts, analytical reagents, red glass.
It is also used for rectifier plating in the electrical industry. It is also used as a colorant for ceramics and enamels.
