**High Purity Selenium** CAS No: 7782-49-2 Melting point: 217C Powder Density: 4.81 g /cm3 Boiling Point: 684.9±1.0 C EC No.: 231-957-4 Se-05 Grade 99.999. The content of Selenium is above** 99.999%**. The total content of Ag, Al, Bi, Cd, Cu, Fe, Ga, In, Mg, Ni, Pb, Sb, Te & Tl is bellow 10 ppm; Ultra Purity Selenium: Se-06 Grade 99.9999. The content of Selenium is above **99.9999%.** The total content of Ag, Al, Au, Bi, Co, Cu, Fe & Ni is bellow 1 ppm. Physical Size: Granule, Powder. Packing: nitrogen shield/ double bags/ customed