|
Item |
70% liquid |
Crystal |
Crystal |
|
Assay≥ |
70% |
99.0% |
99.5% |
|
Total acid(Hydroxyacetic acid ) |
70~72% |
|
|
|
Free acid (Hydroxyacetic acid )≥ |
62% |
|
|
|
Residue on ignition ≤ |
0.3% |
0.05% |
0.05% |
|
Water insolubles≤ |
0.01% |
0.01% |
0.005% |
|
Chroma( Hazen )≤ |
5 |
5 |
5 |
|
chloride(Cl-)≤ |
0.001% |
0.0005% |
0.0005% |
|
sulphate(SO42-)≤ |
0.05% |
0.005% |
0.005% |
|
Heavy metal(Pb)≤ |
|
0.001% |
0.0005% |
|
Fe ≤ |
0.001% |
0.0005% |
0.0005% |
|
As ≤ |
|
0.0002% |
0.0001% |
|
Sulphuric acid test |
Qualified |
Qualified |
Qualified |
|
Clarity test |
Qualified |
Qualified |
Qualified |
Use:Mention precious metals, organic synthesis industry.
