... ,shape :ingot/powder/ selenium isotope / selenium 74 Selenium ingot ,Selenium grain,Selenium powder 1, Physical character:Atomic Weight: 78.96Electronegative: 2 ... , Ni, Pb, Sb, Te, Zn, Mn,Ca & Tl is bellow 10 ppm;Uitra Purity Selenium:Se-06 Grade 99.9999. The ... .002%maxPacking25kg /iron drumSelenium GranuleSelenium ingotSelenium powder Selenium ingot ,Selenium grain,Selenium powder