Original
The company profile was verified by 
Molecular weight:120.37
CAS NO:7487-88-9
Standard：The highest impurity content is counted by %
|
Index name |
Analytically pure-AR |
High purity |
|
Content |
≥99.0% |
≥98.0% |
|
Water insoluble |
≤0.005 |
≤0.01 |
|
Free acid（ counted by H2SO4 ） |
≤0.05 |
—— |
|
Chloride(Cl) |
≤0.002 |
≤0.002 |
|
Phosphate（PO4） |
≤0.005 |
—— |
|
Calcium（Ca） |
≤0.05 |
≤0.05 |
|
Ferrum(Fe) |
≤0.001 |
≤0.001 |
|
Arsenic(As) |
≤0.0002 |
≤0.001 |
|
Heavy metal( counted by Pb) |
≤0.001 |
≤0.001 |
