Selenious Acid (CAS 7783-00-8): Properties, Uses, and Safety Information

Selenious acid is a strong oxidizing agent used as a reagent for alkaloids and in changing the color of steel. It is toxic and corrosive, requiring careful handling. Main applications include steel coloring, chemical darkening of metals, and as a source of selenium in various chemical processes.

Frequently Asked Questions

Q: What are the main uses of selenious acid?

A: Selenious acid is primarily used as an oxidizing agent, a reagent for alkaloids, and for changing the color of steel from silver-grey to blue-grey. It is also used in the chemical darkening of copper, brass, and bronze, and as a source of selenium in various chemical processes.

Q: What are the safety precautions for handling selenious acid?

A: Selenious acid is toxic and corrosive. Handle with care using appropriate personal protective equipment including gloves, eye protection, and respiratory protection. Work in a well-ventilated area and avoid skin contact or inhalation. In case of exposure, seek immediate medical attention.

Q: How should selenious acid be stored?

A: Store selenious acid in a dry, well-ventilated area separated from food and feedstuffs. Keep the container tightly closed and protect from moisture as the compound is hygroscopic.