Soft magnetic ferrite used zinc oxide is developed by our company.
|
Item
|
Index
|
|
Zinc oxide content%≥
|
99.75
|
|
heavy metal(Zn)
|
no
|
|
lead oxide(Pb)%≤
|
0.03
|
|
copper oxide(Cu)%≤
|
0.0002
|
|
manganese oxide(Mn)%≤
|
0.0001
|
|
chromic oxide(Cd)%≤
|
0.005
|
|
nickel oxide(Ni)%≤
|
0.10
|
|
oxide(Cl)
|
0.005
|
|
manganic %≤
|
0.005
|
|
loss on ignition %≤
|
0.2
|
|
water solubles%≤
|
0.1
|
|
moisture(105℃)%≤
|
0.2
|
|
residue on sieve(45μm)%≤
|
0.05
|
|
appearance
|
white powder
|
|
