Sulfur (S) 1, Physical character: Atomic Weight: 32.06 Electronegative: 2.44-2.58 Melting Point: mp: 386 °C Boiling Point: bp: 444.8 °C 2, Specification: High Purity Sulfur: S-05 Grade 99.999. The content of Sulfur is above 99.999%. The total content of Al, As, Co, Cu, Fe, Mn,Ni, Pb, Sn, Se & Zn is bellow 10 ppm; Uitra Purity Sulfur: S-06 Grade 99.9999. The content of Sulfur is above 99.9999%. The total content of Al, Co, Cu, Fe, Mn,Ni, Pb & Sn is bellow 1 ppm; 3, Physical Size: Virgulate, Powder. 4, Usage: It is mainly used in the manufacture of II-VI compound semiconductors, photoelectric devices and glass semiconductor elements and as calibration speciment in analysis. 5, Packing: It is packed with dacron film, then covered with a sealed plastic film bag.