Features:
1, small particle size, particle size uniformity, strong dispersion, chemical reaction is fast and thorough, and reaction speed.
2, high purity, high to make resultant purity and stability. Fewer impurities, thus greatly reducing the impact of the main products of other resultant.
3, the single particle density, the proportion of small, difficult to precipitate during the reaction.
4, the color white, the color of the reaction product of no effect.
People's Republic of China standard GB/T3185-92 %(m/m)
Item |
Index |
||
Model |
Top Grade |
First Grade |
Qualified Product |
Zinc Oxide (as ZnO) % ≥ |
99.7 |
99.5 |
99.4 |
Metals (as dry)% ≤ |
No |
No |
0.008 |
Lead Oxide (as Pb) % ≤ |
0.037 |
0.05 |
0.14 |
Manganese Oxide (as Mn) % ≤ |
0.0001 |
0.0001 |
0.0003 |
Copper Oxide (as Cu)% ≤ |
0.0002 |
0.0004 |
0.00007 |
Insoluble Matter in Hcl % ≤ |
0.006 |
0.008 |
0.05 |
Loss on ignition % ≤ |
0.20 |
0.20 |
0.20 |
Residue on sieve % ≤ |
0.10 |
0.15 |
0.20 |
Water soluble matter% ≤ |
0.10 |
0.10 |
0.15 |
Volatile matter on 105℃% ≤ |
0.3 |
0.4 |
0.5 |
Purposes:
Widely used in zinc stearate, zinc bromide, zinc borate, phosphate solution, the production can also be used to deploy the plating solution.