Directness Zinc oxide
Product Property:
Molecular Formula: ZnO
Molecular Weight: 81.38
Appearanee Character: White powder
It is indissoluble in water while dissoluble in acid and alkali.
Produce Usage:
It is chiefly applied in rubber ,painting, cable ,glass, ceramics, pottery and porcelain, enamel, petrol, chemical engineering industries etc..
Classification and technique index GB/T3494-1996
Table 1 Zinc oxide' s classification, class and mark
| Classification |
Class |
Mark |
Main Use |
| X |
First |
ZnO-X1 |
Rubber |
| Second |
ZnO-X2 |
| T |
First |
ZnO-T1 |
painting |
| Second |
ZnO-T2 |
| Third |
ZnO-T3 |
Table 2 zinc oxide' s chemical components and physical featuresItem
| Iterm / Specification |
ZnO-X1 |
ZnO-X2 |
ZnO-T1 |
ZnO-T2 |
ZnO-T3 |
| Zinc oxide(take dry product)% ≥ |
99.5 |
99.0 |
99.5 |
99.0 |
98.0 |
| Lead oxide (PbO)%≤ |
0.12 |
0.20 |
_ |
_ |
_ |
| Cadmium oxide(CdO) %≤ |
0.02 |
0.05 |
_ |
_ |
_ |
| Copper oxide(take Cu) %≤ |
0.006 |
_ |
_ |
_ |
_ |
| Manganese( take Mn) %≤ |
0.0002 |
_ |
_ |
_ |
_ |
| Metal zinc%≤ |
nil |
nil |
nil |
_ |
_ |
| Muriatic acid insoluble substance%≤ |
0.03 |
0.04 |
_ |
_ |
_ |
| Loss on ignition%≤ |
0.4 |
0.6 |
0.4 |
0.6 |
_ |
| Hydrotrope % ≤ |
0.4 |
0.6 |
0.4 |
0.6 |
0.8 |
| Residue on sieve%≤ |
0.28 |
0.32 |
0.28 |
0.32 |
0.35 |
| 105°C volatile matter%≤/td>
| 0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
| Oil absorption ,g/100g%≤ |
_ |
_ |
18 |
20 |
20 |
| Reducing power (compare with standard sample)% ≥ |
_ |
_ |
100 |
98 |
95 |
| Color(compare with standard sample) |
_ |
_ |
near |
| Note: may order in contract if there' s special need |
Package and storage Package
1. Zinc oxide is packaged by tuner plastic bag and outer contexture bag, please be sure that the bag is Sealed tightly. Every bag weights 25Kg or 50Kg according to customer's request.
2. This product should be stored in dry and clean place, and it should be separated from acid and alkali. It's shelf life is half year.
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