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Merck

71800

Sodium oxalate

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

Sinónimos:

Ethanedioic acid sodium salt, Oxalic acid disodium salt

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Fórmula lineal:
NaOOCCOONa
Número CAS:
Peso molecular:
134.00
NACRES:
NB.24
PubChem Substance ID:
eCl@ss:
39021701
UNSPSC Code:
12352300
EC Number:
200-550-3
MDL number:
Beilstein/REAXYS Number:
3631622
Assay:
≥99.5% (RT)
Form:
powder or crystals
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Quality Level

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 (SO42-): ≤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

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.


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Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Oral

Clase de almacenamiento

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable



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Hong-Joo Lee et al.
Bioresource technology, 130, 211-217 (2013-01-12)
The present study investigated the feasibility of the recovery and reuse oxalic acid in a multistage process for the pretreatment of a lignocellulosic biomass. Electrodialysis (ED), an electrochemical process using ion exchange membranes, was used to recover and reuse oxalic
Jiří Jan et al.
Water research, 47(2), 547-557 (2012-12-12)
Correct identification of P forms together with their main Fe and Al binding partners in non-calcareous sediments is of crucial importance for evaluation of P cycling in water bodies. In this paper, we assess extraction methods frequently used for this
Peiyan Li et al.
Food chemistry, 142, 72-78 (2013-09-05)
Effects of oxalic acid on chilling injury, proline metabolism and energy status in mango fruit were investigated after mango fruit (Mangifera indica L. cv. Zill) were dipped in 5mM oxalic acid solution for 10min at 25°C and then stored at