Oxalic acid
Molecular formula: HOOCCOOH·2H2O
Quality standard: GB 1626-88
Appearance: colorless transparent crystal
Uses: pharmaceutical, chemical and light industry
Packing: polypropylene woven bag with inner plastic film
Notes: The product is toxic and corrosive on skin and mucosa. Please keep operation field ventilated. And the storage temperature should be lower than 40℃.
|
Item |
superior grade |
top grade |
qualified product |
|
Oxalic acid %≥ |
99．6% |
99.0% |
96.0 |
|
sulfate radical(SO4)%≤ |
0.07 |
0.10 |
0.20 |
|
ignition residue%≤ |
0.01 |
0.08 |
0.20 |
|
heavy metal(Pb)%≤ |
0.0005 |
0.001 |
0.02 |
|
iron(Fe )%≤ |
0.0005 |
0.0015 |
0.01 |
|
chloride(CI)%≤ |
0.0005 |
0.0002 |
0.01 |
|
calcium(Ca)%≤ |
0.0005 |
— |
— |