SeO2

Selenium dioxide (SeO2) is an inorganic ceramic compound primarily used as a specialized oxide in glass manufacturing, electronics, and optical applications. In industry, it serves as a glass colorant and decolorizer in borosilicate and soda-lime glasses, and appears in selenium-based rectifiers and photocells where its semiconducting properties are exploited. Engineers select SeO2 when requiring materials with specific optical transparency, thermal stability, or electrical characteristics in niche applications where selenium's unique electronic structure provides advantages over more common ceramic alternatives.