Molecular formulaZnOMolecular weight81.39 Applicationrubberceramicsmedicinepaintprinting and dyeingmagnetic materialelectronicpaper and so on. Methods of productionindirect process   QI GB3185-92
Item	Specifications
	BA01-05I			BA01-05II
	Premium grade	First grade	Quality products	Premium grade	First grade	Quality products
ZnOpurity%≥	99.90	99.50	99.40	99.70	99.50	99.40
metal objectZn%≤	None	None	0.008	None	None	0.008
PbOPb%≤	0.037	0.05	0.14
manganese oxideMn%≤	0.0001	0.0001	0.0003
Cu%≤	0.0002	0.0004	0.0007
Insoluble matter%≤	0.006	0.008	0.05
loss of ignition%≤	0.2	0.2	0.2