Oxalic acid
1.Molecular formula: (COOH)2.2H2O
Molecular Weight: 40
CAS No.: 144-62-7
HS CODE: 29171110
2.Property: White crystal & powder; readily soluble in water, with light nitrogen oxides-like odour. Oxalic acid dihydrate begins to dissociate at temperature over 30 0C. If heated quickly, it melts at 101.5 0C, anhydrous oxalic acid melts at 180 ℃.
3. Specificarion:
|
Item |
Data |
|
Content ≥ |
99.6% |
|
SO4 2- ≤ |
0.005% |
|
Residue on ignition ≤ |
0.10% |
|
Heavy metal(Pb) ≤ |
0.001% |
|
Fe ≤ |
0.001% |
|
Chloride(Cl) ≤ |
0.003% |