Purity: >99.0%
[O] < 0.23%, (C<0.2%, Fe<0.04%, Si<0.02%)
APS: 20 nm max
SSA: 80 m2/g
Bulk density: 0.08 g/cm3
Crystal cell: Cubic
Color: black
CAS No.: 25583-20-4
EINECS Number: 247-117-5
Shelf time: 24 months
It possesses many strong points including high purity, small particle diameters, large specific surface area, high surface activity, violet light shield larger than 80%, good separate property. It has excellent electric conductance, so it can be used to make electrodes and electric contacts etc.