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Zinc oxide for top-grade ceramics

Uses: Zinc oxide for top-grade ceramics is an important chemical flux material of ceramics, most of them are used in glaze material of ceramic wall and floor tiles, or low-temperature ceramic wares; moreover, it is also widely used in the glaze material of art ceramics. In ceramic industry, Zinc oxide is widely used in the glaze of brick and tiles, translucent glaze of stone ware, transparent glaze or fritted glaze of crafted tableware and dish.

Standard:

Item
Index
Model
Top grade
First grade
Zinc oxide (as ZnO)%,≥
99.7
99.4
Metals (as Zn)%,≤
No
No
Lead oxide (as Pb)%,≤
0.037
0.14
Ferric oxide (as Fe)%,≤
0.01
0.03
Insoluble matter in HCl%,≤
0.02
0.05
Loss on ignition%,≤
0.20
0.30
Volatile matter on 105oC%,≤
0.20
0.30


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