Monocrystal Antimony for Semiconductor/Infrared Material High purity Sb: 99.999% /5N Ultra purity Sb: 99.9999% /6N Ultra high purity Sb: 99.99999% /7N Product usage: mainly applied in manufacturing III-IVcompound semiconductors, high purity alloys,glass semiconductorsand the dopant of Si and Ge single crystals,applied in free electron laser and optical memory storage.