| Identification | ||
| Name | Oxalic acid | |
| Synonyms | Oxalic acid anhydrous; Ethanedionic acid | |
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| Molecular Structure |
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| Molecular Formula | C2H2O4 | |
| Molecular Weight | 90.03 | |
| CAS Registry Number | 144-62-7 | |
| EINECS | 205-634-3 | |
| Properties | ||
| Density | 1.9 | |
| Melting point | 189-191 ºC | |
| Sublimation | 101-157 ºC | |
| Water solubility | 90 g/L (20 ºC) | |