In the ceramic industry, zinc oxide used as a flux; in the printing and dyeing industry, zinc oxide used to prevent dye; Zinc oxide fine particles as a result, high activity, can reduce the glass and ceramic sintering temperature, in addition to the use of nano-Zinc oxide prepared more smooth glazed ceramics, and has anti-bacterial, anti-enzymes, such as the effectiveness of deodorant.

ITEM	Quality
	Nks131	Nks132	Nks133
ZnO/% ≥	99.0	97.0	95.0
Grain nm≤	20	57	100
XRD /nm≤	20	52	100
Surface proportion (㎡/g)≥	60	62	65
Join index≤	50	60	100
Lead oxide( Pb )/%≤	0.0005	0.0005	0.0005
Manganese Oxide /% ≤	0.0001	0.0001	0.0001
Cupric oxide(Cu)/%≤	0.0001	0.0001	0.0001
Cd/%≤	0.0002	-	-
Hg/%≤	0.0001	-	-
As/%≤	0.0001	-	-
105℃ volatile substances %≤	0.30	0.4	0.5
Water dissoluble % ≤	0.10	0.41	0.5
Hydrochloric acid insoluble %≤	0.02	0.02	0.02
Burning decrement ％≤	2	2	2