Zinc Oxide 99.5% ~90%
Indirect ZnO: 99.9%~99.7%, etc.
-Feed Grade ZnO: 75%~65%, etc.
-Calcined ZnO: 99.5%,
Zinc Oxide Grades : Indirect process Zinc Oxide, Direct Process Zinc Oxide, Calcined Zinc Oxide, Feed Grade Zinc Oxide, Pharmaceutic Zinc Oxide, nanometer Zinc Oxide, etc.
Property: White powder, odourless, relative density 5.606, stable under normal temperature. Insoluble in water and alcohol, soluble in acid, alkaki and amkonium solution.
Usage: Used in rubber, dope cable, porcelain enamel, oil, pottery and porcelain, glass and other chemical industry.
Packing: In polyethylene film bag with outer polypropylene woven bag, 25kg, 50kg, big sack bag or as required by the customer
Direct process zinc oxide quality meet standard of GB/T3494-1996
|
Item/Parameter |
Standard |
|
Zinc Oxide (in accordance with dry materials) % ≥ |
ZnO 99.5% |
ZnO 99% |
ZnO 98% |
ZnO 95% |
ZnO 90% |
|
Lead oxide (PbO)% ≤ |
0.12 |
0.2 |
1.0 |
3.0 |
4.0 |
|
Cadmium oxide (CdO) % ≤ |
0.02 |
0.05 |
-- |
-- |
-- |
|
Cupric oxide (CuO) % ≤ |
0.006 |
-- |
-- |
-- |
-- |
|
Manganese (Mn) % ≤ |
0.0002 |
-- |
-- |
-- |
-- |
|
Metallic Zinc (in accordance with Zn) % |
None |
None |
-- |
-- |
-- |
|
Muriatic Acid Insoluble Substance % ≤ |
0.03 |
0.04 |
0.5 |
0.7 |
2.0 |
|
Loss On Ignition % ≤ |
0.4 |
0.6 |
0.7 |
1.0 |
5.0 |
|
Water Soluble Substance % ≤ |
0.4 |
0.6 |
0.7 |
1.0 |
3.0 |
|
Sieve Residue (45um mesh ) % ≤ |
0.28 |
0.32 |
0.5 |
0.5 |
0.5 |
|
Volatile % ≤ |
0.4 |
0.4 |
0.5 |
0.5 |
0.5 |
