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71800

Sigma-Aldrich

Sodium oxalate

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

Sinónimos:

Ethanedioic acid sodium salt, Oxalic acid disodium salt

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34,30 €
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144,00 €

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34,30 €
500 G
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About This Item

Fórmula lineal:
NaOOCCOONa
Número de CAS:
62-76-0
Peso molecular:
134.00
Beilstein:
3631622
Número CE:
200-550-3
Número MDL:
MFCD00012465
Código UNSPSC:
12352300
eCl@ss:
39021701
ID de la sustancia en PubChem:
329763542
NACRES:
NB.24

34,30 €

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grado

ACS reagent
puriss. p.a.

Ensayo

≥99.5% (RT)

Formulario

powder or crystals

impurezas

≤0.002% ammonium (NH4)

pérdida

≤0.01% loss on drying, 105 °C

pH

7-8.5 (25 °C, 2.5% in H2O)

trazas de anión

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

trazas de catión

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

cadena 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

Clave InChI

ZNCPFRVNHGOPAG-UHFFFAOYSA-L

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Descripción general

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.

Aplicación

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.

Pictogramas

Exclamation mark
GHS07

Palabra de señalización

Warning

Frases de peligro

H302 + H312

Clasificaciones de peligro

Acute Tox. 4 Dermal - Acute Tox. 4 Oral

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

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Certificados de análisis (COA)

Lot/Batch Number
BCCL3539
BCCJ8667
BCCF1170
BCCC6505
BCCC5711

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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
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
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
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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 respuesta

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 respuesta

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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