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Merck

71800

Sodium oxalate

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

Synonyme(s) :

Ethanedioic acid sodium salt, Oxalic acid disodium salt

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A propos de cet article

Formule linéaire :
NaOOCCOONa
Numéro CAS:
Poids moléculaire :
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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Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Oral

Classe de stockage

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable



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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
Lu Gao et al.
International journal of phytoremediation, 15(4), 307-319 (2013-03-16)
Phytolacca americana L. can accumulate large amounts of heavy metals in its aerial tissues, especially cadmium (Cd) and manganese (Mn). It has great potential for use in phytoextraction of metals from multi-metal-contaminated soils. This study was conducted to further investigate
Taiying Zhang et al.
Carbohydrate polymers, 92(1), 334-344 (2012-12-12)
Dilute oxalic acid pretreatment was applied to maple wood to improve compatibility with downstream operations, and its performance in pretreatment and subsequent enzymatic hydrolysis was compared to results for hydrothermal and dilute hydrochloric and sulfuric acid pretreatments. The highest total