KHgON2

KHgON₂ is an inorganic ceramic compound containing potassium, mercury, oxygen, and nitrogen—a rare quaternary phase that falls outside conventional ceramic families and appears primarily in research contexts rather than established industrial production. This material belongs to the broader family of mercury-containing inorganic compounds, which have historically been studied for specialized optical, electronic, or catalytic properties, though mercury-based materials face increasing regulatory and environmental scrutiny. The limited engineering adoption reflects both handling hazards associated with mercury and the availability of safer alternative materials for most applications.