Oxalic acid dihydrate
SIGMA/75699 - BioUltra, ≥99.0% (RT)
Synonym: Ethanedioic acid dihydrate
CAS Number: 6153-56-6
Empirical Formula (Hill Notation): C2H2O4 · 2H2O
Molecular Weight: 126.07
EC Number: 205-634-3
MDL Number: MFCD00149102
Linear Formula: HO2CCO2H · 2H2O
Product Type: Chemical
absorption | cut-off at 303 nm in H2O at 1 M |
anion traces | chloride (Cl-): ≤5 mg/kg |
sulfate (SO42-): ≤50 mg/kg | |
assay | ≥99.0% (RT) |
cation traces | Al: ≤5 mg/kg |
As: ≤0.1 mg/kg | |
Ba: ≤5 mg/kg | |
Bi: ≤5 mg/kg | |
Ca: ≤5 mg/kg | |
Cd: ≤5 mg/kg | |
Co: ≤5 mg/kg | |
Cr: ≤5 mg/kg | |
Cu: ≤5 mg/kg | |
Fe: ≤2 mg/kg | |
K: ≤50 mg/kg | |
Li: ≤5 mg/kg | |
Mg: ≤5 mg/kg | |
Mn: ≤5 mg/kg | |
Mo: ≤5 mg/kg | |
Na: ≤50 mg/kg | |
Ni: ≤5 mg/kg | |
Pb: ≤5 mg/kg | |
Sr: ≤5 mg/kg | |
Zn: ≤5 mg/kg | |
form | crystals |
ign. residue (900 °C) | ≤0.01% (as SO4) |
impurities | insoluble matter, passes filter test |
≤0.001% total nitrogen (N) | |
InChI | 1S/C2H2O4.2H2O/c3-1(4)2(5 |
InChI key | GEVPUGOOGXGPIO-UHFFFAOYSA |
mp | 104-106 °C (lit.) |
pH | ~1.0 (25 °C, 1 M in H2O) |
product line | BioUltra |
Quality Level | 100 |
SMILES string | [H]O[H].[H]O[H].OC(=O)C(O |
solubility | H2O: 1 M at 20 °C, clear, colorless |
vapor density | 4.4 (vs air) |
vapor pressure | <0.01 mmHg ( 20 °C) |
Symbol | GHS05,GHS07 |
Signal word | Danger |
Hazard statements | H302 + H312 - H318 |
Precautionary statements | P264 - P270 - P280 - P301 + P312 - P302 + P352 + P312 - P305 + P351 + P338 |
Hazard Codes | Xn |
Risk Statements | 21/22-41 |
Safety Statements | 26-36-37-39 |
RIDADR | NONH for all modes of transport |
WGK Germany | WGK 1 |
Purity | ≥99.0% (RT) |
mp | 104-106 °C (lit.) |
UNSPSC | 12161700 |