33506

Oxalic acid dihydrate

ACS reagent grade, ≥99.5% (manganometric), crystals, puriss. p.a., reag. ISO, reag. Ph. Eur.

• Sinónimos: Ethanedioic acid dihydrate
• Fórmula lineal: HO₂CCO₂H · 2H₂O
• Número CAS: 6153-56-6
• Peso molecular: 126.07
• NACRES: NA.21
• PubChem Substance ID: 57648855
• eCl@ss: 39021701
• UNSPSC Code: 12352100
• EC Number: 205-634-3
• MDL number: MFCD00149102
• Beilstein/REAXYS Number: 3679436
• Assay: ≥99.5% (manganometric)
• Form: crystals

Propiedades

• Nombre del producto: Oxalic acid dihydrate, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5% (manganometric)
• Quality Segment: 200
• agency: USP/NF, reag. ISO, reag. Ph. Eur.
• vapor density: 4.4 (vs air)
• vapor pressure: <0.01 mmHg ( 20 °C)
• grade: ACS reagent, puriss. p.a.
• assay: ≥99.5% (manganometric)
• form: crystals
• impurities: foreign organic matter, in accordance, ≤0.001% total nitrogen (N)
• ign. residue: ≤0.01% (as SO₄)
• mp: 104-106 °C (lit.)
• anion traces: chloride (Cl^-): ≤5 mg/kg, sulfate (SO₄^2-): ≤20 mg/kg
• cation traces: Ca: ≤5 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤2 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg, heavy metals: ≤5 ppm (by ICP-OES)
• functional group: carboxylic acid
• 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

Descripción

General description

Oxalic acid dihydrate crystals are monoclinic and exhibit a space group P2₁/n. Each unit cell contains two molecules. ¹³C chemical shielding tensors in oxalic acid dihydrate have been evaluated.

Application

Oxalic acid dihydrate has been used to prepare oxalate precursor, which was employed for the synthesis of zinc oxide nanopowders. It may be used to prepare the 0.01M solution of oxalic acid, which was employed in the mobile phase in liquid chromatographic studies.

Información de seguridad

• Pictogramas: GHS05,GHS07
• Palabra de advertencia: Danger
• Códigos de peligro: H302 + H312,H318
• Indicaciones de precaución: 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
• Clase de almacenamiento: 11 - Combustible Solids
• EPI (equipos de protección individual): dust mask type N95 (US), Eyeshields, Gloves