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Zinc oxide for arrester purpose

Uses: In the electronics industry, Zinc oxide for arrester purpose is mainly used to manufacture the magnetic elements of electronic structure-Ferrite; moreover, TV, radio, telecommunications installations and rheostat all adopts such magnetic materials.

Standard:JB/T9670-1999

Item
Index
Zinc oxide (as ZnO)%,≥
99.7
Potassium oxide (as K)%,≤
0.0010
Sodium oxide (as Na)%,≤
0.0010
Ferric oxide (as Fe)%,≤
0.0020
Cadmium oxide (as Cd)%,≤
0.0050
Lead oxide (as Pb)%,≤
0.037
Copper oxide (as Cu)%,≤
0.0002
Metal zinc (as Zn)%,≤
No
Moisture %,≤
0.3
Insoluble matter in HCl%,≤
0.006
Loss on ignition%,≤
0.2
PH value
7.0-8.0
Average size (um),≤
0.50
Residue on sieve%,≤
0.10


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