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Product name: Oxalic Acid
Synonyms: Ethanedionic acid; Oxalic acid anhydrous; Refined Oxalic Acid
CAS#: 144-62-7
EINECS#: 205-634-3
Molecular Formula: C2H2O4
Molecular Weight: 126.07
Description
Melting point: 189-191°C
Boiling point: 365.1°C at 760 mmHg
Flash point:188.8°C
Water Solubility: 90 g/L (20°C)
Appearance: White crystal
|
Index |
Wonderful grade |
First grade |
Up to grade |
|
Purity(H2C2O4·H2O)% ≥ |
99.6 |
99.4 |
99.0 |
|
Suiphate group(SO4-2) % ≤ |
0.0010 |
0.003 |
0.005 |
|
Ash % ≤ |
0.01 |
0.015 |
0.08 |
|
Heavy metal(Pb+2) % ≤ |
0.00005 |
0.0001 |
0.0005 |
|
Iron content (Fe+3)% ≤ |
0.00005 |
0.0001 |
0.0005 |
|
Chlorides (Cl- )% ≤ |
0.0005 |
0.0005 |
0.001 |
|
Calcium (Ca+2 )% ≤ |
0.0001 |
0.00015 |
0.0005 |
|
Al % ≤ |
0.0001 |
0.0001 |
0.0001 |
|
Mg % ≤ |
0.00005 |
0.00001 |
0.00001 |
|
Na % ≤ |
0.00015 |
0.0002 |
0.0005 |
|
As % ≤ |
0.00001 |
0.00001 |
0.00001 |
