- Selenium is a chemical element with symbol Se, atomic number 34, and possesses a gray to black appearance. Selenium rarely occurs in its elemental state or as pure ore components. Instead, it is found in metal sulfide ores where it partially replaces the sulfur. Its primary uses are glass making, pigments, and semiconductors for photocells.
- High quality spherical powder;
- Purity: Se > 99.5%.