Sodium oxalate

InChI key

ZNCPFRVNHGOPAG-UHFFFAOYSA-L

InChI

1S/C2H2O4.2Na/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);;/q;2*+1/p-2

SMILES string

[Na+].[Na+].[O-]C(=O)C([O-])=O

grade

ACS reagent, puriss. p.a.

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

Quality Level

200