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Antimony (Sb) 1, Physical character: Atomic Weight: 121.760 Density: ρ=6.697 g/cm3 (25°C) Melting Point: mp: 630.7 °C Boiling Point: bp: 1587 °C 2, Specification: High Purity Antimony: Sb-05 Grade 99.999. The content of Antomony is above 99.999%. The total content of Ag, As, Au, Bi, Cd, Cu, Fe, Mg, Mn, Ni, Pb, S & Zn is bellow 10 ppm; Uitra Purity Antimony: Sb-06 Grade 99.9999. The content of Antomony is above 99.9999%. The total content of Ag, As, Au, Bi, Cd, Cu, Fe, Mg, Mn, Ni, Pb & Zn is bellow 1 ppm; Uitra High Purity Antimony: Sb-07 Grade 99.99999. The content of Antomony is above 99.99999%. The total content of Ag, Au, Cu, Fe, Mg, Ni, Pb & Zn is bellow 0.1 ppm; 3, Physical Size: Virgulate, Ingot, Powder. 4, Usage: It is mainly used in the manufacture of III-V compound semiconductor, such as InSb, Bi2Sb, GaSb etc. high purity alloy, the material of electronic refrigerating element and as a dopant of Germanium & Silicon single crystal. 5, Packing: It is packed with dacron film, then covered with a sealed plastic film bag or vacuum sealed in a glass ampule.