Application
industry
Contact
Us
Add: Longda Industrial
Park,Gudi Street,Weifang City,China longda@wflongda.com
Products
Zinc oxide for soft magnetic ferrites
Uses: Mainly used in the electronics industry to manufacture deflection magnetic core or other zinc magnesium ferrite magnetic cores.Standard: HG/T2384-1997
Item
Index
Model
First grade
Qualified product
Zinc oxide (as ZnO)%,≥
99.75
99.65
Water soluble matter %,≤
0.1
0.1
Insoluble matter in HCl%,≤
0.005
0.008
Metal zinc (as Zn)%,≤
No
0.001
Loss on ignition%,≤
0.2
0.2
Chloride (as Cl)%,≤
0.005
-
Pb %,≤
0.03
0.04
Mn %,≤
0.0001
0.0002
Cu %,≤
0.0002
0.0004
Cd %,≤
0.005
0.03
Ni %,≤
0.1
-
Volatile matter on 105o C%,≤
0.2
0.4
Apparent density
Compactness g/ml
0.8-1.0
0.8-1.0
0.4-0.5
0.4-0.5
RResidue on sieve (45um experimental sieve) %,≤
0.05
0.15
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