27725
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27725
Sigma-Aldrich
Oxalic acid dihydrate
puriss., ≥99%
| Synonym: | Ethanedioic acid |
| CAS Number: | 6153-56-6 |
| Linear Formula: | HO2CCO2H · 2H2O |
| Molecular Weight: | 126.07 |
| Beilstein Registry Number: | 3679436 |
| EC Number: | 205-634-3 |
| MDL number: | MFCD00149102 |
Properties
| vapor density | 4.4 (vs air) |
| vapor pressure | <0.01 mmHg ( 20 °C) |
| grade | puriss. |
| assay | ≥99% |
| total impurities | ≤0.001% heavy metals (as Pb) |
| ign. residue | ≤0.05% (as SO4) |
| mp | 104-106 °C(lit.) |
| anion traces | chloride (Cl-): ≤20 mg/kg |
| sulfate (SO42-): ≤50 mg/kg | |
| cation traces | Ca: ≤50 mg/kg |
| Fe: ≤10 mg/kg |
Safety
References
| Beilstein | Beil. 2,IV,1819 |
| Fieser | Fieser 1,764 / Fieser 2,301 / Fieser 5,481 |
| reference | Aldrich MSDS 1, 1413:D / Corp MSDS 1 (2), 2661:D / FT-IR 2 (1), 768:A / FT-IR 1 (1), 490:B / IR-Spectra (3), 288:F / IR-Spectra (2), 260:B / RegBook 1 (1), 541:B / Structure Index 1, 76:B:5 |
