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Chemical grade zinc oxide

Uses: "Longdaxin" Chemical grade zinc oxide is widely used in the production of zinc stearate, zinc bromide, zinc borate, phosphorizing liquid, can also be used to produce electroplating solution.

Standard:

Item
Index
Model
Top grade
First grade
Qualified product
Zinc oxide (as ZnO)%,≥
99.7
99.5
99.4
Metals (as dry)%,≤
No
No
0.008
Lead oxide (as Pb)%,≤
0.037
0.05
0.14
Manganese oxide (as Mn)%,≤
0.0001
0.0001
0.0003
Copper oxide (as Cu)%,≤
0.0002
0.0004
0.0007
Insoluble matter in HCl%,≤
0.006
0.008
0.05
Loss on ignition%,≤
0.20
0.20
0.20
Residue on sieve (45um) %,≤
0.10
0.15
0.20
Water soluble matter %,≤
0.10
0.10
0.15
Volatile matter on 105oC%,≤
0.3
0.4
0.5


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