High purity zinc oxide

Item/Parameter

Standard

Zinc Oxide % ≥

ZnO *9%

ZnO *9.5%

ZnO *9.7%

ZnO *9.8%

ZnO *9.9%

Metallic Zinc (in accordance with Zn) %

0.*1

None

None

None

None

Lead oxide (PbO)%≤

0.*5

0.*5

0.**7

0.**1

0.**1

Cadmium oxide (CdO) % ≤

*-

*-

*-

0.***5

0.***5

Cupric oxide (CuO) % ≤

0.***4

0.***4

0.***2

0.***2

0.***2

As ≤

*-

*-

*-

0.***5

0.***5

Manganese (Mn) % ≤

0.***8

0.***1

0.***1

*-

*-

Ferro Oxide (FeO) % ≤

*-

*-

0.**1

*-

*-

Muriatic Acid Insoluble Substance % ≤

0.*1

0.**8

0.**6

0.**4

0.**4

Loss On Ignition % ≤

0.2

0.2

0.2

*-

*-

Water Insoluble Substance % ≤

0.2

0.2

0.1

*-

*-

Volatile **5°C % ≤

0.5

0.4

0.3

0.3

0.3

Sieve Residue (*5um mesh ) % ≤

0.1

0.1

0.1

0.1

0.1

Surface Area % ≥

*0

*5

*0

*0

*0

Oil Absorption g/**0g ≤

*-

*-

*4

*-

*-

Reducing Power (compared with standard sample) % ≥

*-

*-

**0

*-

*-