*Assay(CdO) 99%min
*Cd 86%min
*Ti 0.005%max
*Fe 0.005%max
*Pb 0.002 %max
*Cu 0.005%max
*Zn 0.001 %max.
*Sb 0.002 %max.
*As 0.002 %max.
*Cl 0.005 %max.
*SO4 0.005 %max.
*HCl insoluble matter 0.01 %max
*Loose density 0.65— 0.4g /cm3
*Particle size 1.5—2.2 µ
*Electrochemical-capacity 290mA/g