What is selenium compounds?

Selenium compounds are chemical compounds that contain selenium as a central element. Selenium is a non-metallic element found in the Earth's crust. It is a trace mineral that is essential for human health in small amounts, but toxic in large amounts.

Selenium compounds have a wide range of uses, particularly in the chemical industry as catalysts, pigments, and additives for plastics and rubber. They are also used in the production of glass, ceramics, and electronics.

Selenium compounds have important biological functions, including antioxidant and anti-inflammatory properties, and play a role in the body's immune system. They are found in some foods, such as nuts, seeds, and seafood.

However, certain selenium compounds can also be toxic. For example, high levels of selenium in drinking water or in industrial environments can lead to selenium poisoning, which can cause skin, lung, and eye irritation, hair loss, and even death.

Some common selenium compounds include sodium selenite, sodium selenate, selenocysteine, and selenomethionine. These compounds are used in supplements, animal feed, and fertilizers.