75699

Oxalic acid dihydrate

BioUltra, ≥99.0% (RT)

• Synonym(s): Ethanedioic acid dihydrate
• Linear Formula: HO₂CCO₂H · 2H₂O
• CAS Number: 6153-56-6
• Molecular Weight: 126.07
• Beilstein/REAXYS Number: 3679436
• EC Number: 205-634-3
• MDL number: MFCD00149102
• UNSPSC Code: 12161700
• eCl@ss: 39021701
• PubChem Substance ID: 57652582
• NACRES: NA.25

Properties

• vapor density: 4.4 (vs air)
• Quality Level: 100
• vapor pressure: <0.01 mmHg ( 20 °C)
• product line: BioUltra
• assay: ≥99.0% (RT)
• form: crystals
• impurities: insoluble matter, passes filter test; ≤0.001% total nitrogen (N)
• ign. residue (900°C): ≤0.01% (as SO₄)
• pH: ~1.0 (25 °C, 1 M in H₂O)
• mp: 104-106 °C (lit.)
• solubility: H₂O: 1 M at 20 °C, clear, colorless
• anion traces: chloride (Cl^-): ≤5 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• 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
• absorption: cut-off at 303 nm in H₂O at 1 M
• SMILES string: [H]O[H].[H]O[H].OC(=O)C(O)=O
• InChI: 1S/C2H2O4.2H2O/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);2*1H2
• InChI key: GEVPUGOOGXGPIO-UHFFFAOYSA-N

Safety Information

• pictograms: GHS05,GHS07
• signalword: Danger
• hcodes: H302 + H312,H318
• pcodes: P264 - P280 - P301 + P312 - P302 + P352 + P312 - P305 + P351 + P338 - P362 + P364
• Hazard Classifications: Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1
• wgk_germany: WGK 1
• ppe: dust mask type N95 (US), Eyeshields, Gloves