Content

Electronic Grade

I Grade

Special Grade

Co %≥

20.3

20.3

21

Ni %≤

0.001

0.002

0.002

Fe %≤

0.001

0.002

0.002

Mg %≤

0.001

0.002

0.002

Ca %≤

0.001

0.002

0.002

Mn %≤

0.001

0.002

0.002

Zn %≤

0.001

0.002

0.002

Na %≤

0.001

0.002

0.002

Cu %≤

0.001

0.002

0.002

Cd %≤

0.001

0.001

0.001

Insoluble Materials

0.01

0.01

0.01