1.Physical appearance: white or slight yellow powder
2.Application: used as zinc additive for animal feed.
3.Specification (HG2792-2011)
|
Standard Report |
|
Grade |
Premium grade |
Qualified |
|
Zno ≥% |
98 |
95 |
|
Pb ≤ppm |
20 |
20 |
|
Cd ≤ppm |
8 |
8 |
|
As ≤ppm |
5 |
5 |
|
Residue on sieve 150m |
95 |
95 |
