Kadmiumoksidi

Kadmiumoksidi, also known as cadmium oxide, is a chemical compound with the formula CdO. It is a white or yellowish-white powder that is insoluble in water but soluble in acids. Kadmiumoksidi is primarily used as a precursor to other cadmium compounds and as a pigment in ceramics and glass. It is also used in the production of nickel-cadmium batteries and as a stabilizer in PVC plastics.

The compound can be prepared by heating cadmium metal or cadmium carbonate in air. It is a basic oxide and reacts with acids to form cadmium salts. Kadmiumoksidi is toxic and should be handled with care. Exposure to cadmium oxide can cause skin irritation, respiratory problems, and other health issues. It is also classified as a carcinogen, meaning it can cause cancer in humans.

In terms of its structure, kadmiumoksidi crystallizes in a cubic rock salt structure, similar to sodium chloride. The cadmium ion (Cd2+) is coordinated to six oxide ions (O2-), forming an octahedral geometry. The compound is diamagnetic, meaning it does not exhibit paramagnetism.

Kadmiumoksidi has a relatively high melting point of 1,970°C and a boiling point of 2,700°C. It is also relatively stable under normal conditions but can decompose when heated to high temperatures, releasing toxic cadmium fumes. The compound is not flammable but can react with strong reducing agents to produce cadmium metal.