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Sigma-Aldrich

Sodium oxalate

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

Synonyme(s) :

Ethanedioic acid sodium salt, Oxalic acid disodium salt

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About This Item

Formule linéaire :
NaOOCCOONa
Numéro CAS:
Poids moléculaire :
134.00
Numéro Beilstein :
3631622
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352300
eCl@ss :
39021701
ID de substance PubChem :
Nomenclature NACRES :
NB.24

Qualité

ACS reagent
puriss. p.a.

Pureté

≥99.5% (RT)

Forme

powder or crystals

Impuretés

≤0.002% ammonium (NH4)

Perte

≤0.01% loss on drying, 105 °C

pH

7-8.5 (25 °C, 2.5% in H2O)

Traces d'anions

chloride (Cl-): ≤20 mg/kg
sulfate (SO42-): ≤20 mg/kg

Traces de cations

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

Chaîne SMILES 

[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

Clé InChI

ZNCPFRVNHGOPAG-UHFFFAOYSA-L

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Description générale

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.

Pictogrammes

Exclamation mark

Mention d'avertissement

Warning

Mentions de danger

Classification des risques

Acute Tox. 4 Dermal - Acute Tox. 4 Oral

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°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
F Debela et al.
Journal of environmental management, 116, 156-162 (2013-01-15)
Pyromorphite (PY) and some zinc phosphates (Zn-P) are very sparingly soluble minerals and hence can immobilize Pb and Zn in contaminated soils. However, mechanisms leading to the poor efficiency of PY and Zn-P formation in contaminated soils amended with P
Lars Poulsen et al.
PloS one, 7(12), e50596-e50596 (2012-12-20)
Acid formation in Aspergillus niger is known to be subjected to tight regulation, and the acid production profiles are fine-tuned to respond to the ambient pH. Based on transcriptome data, putative trans-acting pH responding transcription factors were listed and through

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