High purity Antimony Sb 4N 4N5 5N 6N 7N 7N5
Outsourced 6N is processed by low temperature chlorinated rectification + vacuum distillation. 7N and above is about single crystal growth.
High Purity Antimony Sb 4N5, 5N, 6N, 7N, 7N5, a silver white brittle and crystalline metal, atomic weight 121.76, density 6.62g/cm3, melting point 630°C, boiling point 1750°C,exhibiting a good resistance to corrosion and stable in dry air, but easily soluble in hot nitric acid and react with hot sulfuric acid, is a poor conductor of heat and electricity. High purity antimony is obtained to more than 99.995%, 99.999%, 99.9999%, 99.99999% and 99.999995% purity by purification method of reduction of antimony trioxide or chlorination rectification with multistage vacuum distillation, zone melting process or single crystal pulling growth techniques etc. Materials can be delivered in various forms of irregular lump 3-25mm, shot 1-10mm, bar D20-40mm, and D15-25mm crystal for MBE application.
High Purity Antimony Sb is used for the preparation of high purity alloy, diodes, electronic refrigerating elements, film for optical memory disk, thermo-electric converter, photovoltaic, and infrared materials sectors, as well as a dopant in n-type semiconductor silicon and germanium monocrystal. High purity Antimony is important source metals for growing crystals of III-V compound semiconductors like Indium antimonide InSb, gallium antimonide GaSb and bismuth antimonide BiSb used for Hall sensors and infrared detectors, and as epitaxy source for MBE growth with various forms and shapes.