71800

Sodium oxalate

puriss. p.a., ACS reagent, ≥99.5% (RT)

• Synonym(s): Ethanedioic acid sodium salt, Oxalic acid disodium salt
• Linear Formula: NaOOCCOONa
• CAS Number: 62-76-0
• Molecular Weight: 134.00
• Beilstein: 3631622
• EC Number: 200-550-3
• MDL number: MFCD00012465
• UNSPSC Code: 12352300
• eCl@ss: 39021701
• PubChem Substance ID: 329763542
• NACRES: NB.24

Properties

• grade: ACS reagent; puriss. p.a.
• Quality Level: 200
• Assay: ≥99.5% (RT)
• form: powder or crystals
• impurities: ≤0.002% ammonium (NH₄)
• loss: ≤0.01% loss on drying, 105 °C
• pH: 7-8.5 (25 °C, 2.5% in H₂O)
• anion traces: chloride (Cl^-): ≤20 mg/kg; sulfate (SO₄^2-): ≤20 mg/kg
• cation traces: Ca: ≤100 mg/kg; Cd: ≤10 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤10 mg/kg; K: ≤50 mg/kg; Mg: ≤10 mg/kg; Mn: ≤50 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Zn: ≤5 mg/kg
• SMILES string: [Na+].[Na+].[O-]C(=O)C([O-])=O
• InChI: 1S/C2H2O4.2Na/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);;/q;2*+1/p-2
• InChI key: ZNCPFRVNHGOPAG-UHFFFAOYSA-L

Description

General description

Sodium oxalate is a sodium salt of oxalic acid consisting of sodium and oxalate ions. It is used as a reducing agent in chemical synthesis. Additionally, it also acts as a surface modifier and a desulfurizing agent.

Application

Sodium oxalate can be used as a stabilizer in the determination of L-ascorbic acid in vitamin C products by the ultraviolet spectrophotometric method. It is also used in the synthesis of copper oxalate nanoparticles by electrolysis of copper plate as anode.

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H302 + H312
• Precautionary Statements: P264 - P280 - P301 + P312 - P302 + P352 + P312 - P362 + P364 - P501
• Hazard Classifications: Acute Tox. 4 Dermal - Acute Tox. 4 Oral
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable