zinc oxide

Zinc Oxide 99% ( direct process)
Specification of Zinc Oxide 99%

TESTITEMS

EXAMINATION STANDARDS
RESULTS

APPEARANCE

White Powder
White Powder

Zinc Oxide ( ZnO) % e
99
99.1

Lead Oxide ( PbO) % d
0.20
0.19

Cadmium Oxide ( CdO) % d
0.05
0.03

Copper Oxide ( CuO) % d
0.007
0.006

Manganese Oxide ( MnO) % d
0.0003
0.0002

Moisture Content % d
0.4
0.2

Loss on Ignition ( L. O. L.) % d
0.6
0.5

Insoluble in HCI % d
0.04
0.03

Residue on ( 325 mesh) % d
0.32
0.3