Copper arsenate is a chemical compound made up of copper, arsenic, and oxygen. It is often used as a pesticide and wood preservative due to its ability to protect against fungi and insects. The compound can be found in various forms, including copper(II) arsenate, which is commonly used in agricultural applications. In addition to its use in pest control, copper arsenate has been studied for its potential environmental impact. Concerns have been raised about the toxicity of arsenic, a component of the compound, which can pose risks to human health and ecosystems if not managed properly.