Hg3Se4O5

Hg₃Se₄O₅ is an inorganic ceramic compound containing mercury, selenium, and oxygen—a mixed-metal oxychalcogenide that exists primarily in research and specialized laboratory contexts rather than as an established commercial material. This compound belongs to the broader family of selenium-based ceramics and mercury compounds, studied for potential applications in optics, sensing, and solid-state chemistry where its unique crystal structure and photochemical properties may offer advantages. As a research material, it represents the type of compositionally complex ceramic that could eventually find use in niche applications such as infrared optics or radiation detection, though it has not achieved widespread industrial adoption.