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Oxalic acid

analytical standard

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CHF 66.80

About This Item

Formula condensata:
HO2CCO2H
Numero CAS:
Peso molecolare:
90.03
Beilstein:
385686
Numero CE:
Numero MDL:
Codice UNSPSC:
12352106
NACRES:
NA.24

CHF 66.80


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Grado

analytical standard

Livello qualitativo

Densità del vapore

4.4 (vs air)

Tensione di vapore

<0.01 mmHg ( 20 °C)

Saggio

98.0-102.0% (redox titration)

Durata

limited shelf life, expiry date on the label

Punto di fusione

189.5 °C (dec.) (lit.)

applicazioni

cleaning products
cosmetics
food and beverages
personal care

Formato

neat

Stringa SMILE

OC(=O)C(O)=O

InChI

1S/C2H2O4/c3-1(4)2(5)6/h(H,3,4)(H,5,6)
MUBZPKHOEPUJKR-UHFFFAOYSA-N

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Descrizione generale

This substance is listed on the positive list of the EU regulation 10/2011 for plastics intended to come into contact with food. Find all available reference materials for compounds listed in 10/2011 here

Oxalic acid is a low-molecular-weight organic acid that occurs naturally in several plants, fruits, vegetables, food and beverage products.[1][2][3][4]

Applicazioni

Oxalic acid may be used as an analytical standard for the determination of the analyte in juice samples,[5][2] honey,[1] food samples[6] fruits, vegetables,[7] alcoholic and non-alcoholic beverages[3] and cosmetic formulations[8] by various chromatography techniques.

Pittogrammi

CorrosionExclamation mark

Avvertenze

Danger

Indicazioni di pericolo

Classi di pericolo

Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 1


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Certificati d'analisi (COA)

Lot/Batch Number

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I clienti hanno visto anche

Slide 1 of 4

1 of 4

Gas chromatographic determination of oxalic acid in foods
Ohkawa H
Journal of the Association of Official Analytical Chemists, 68(1), 108-111 (1985)
Separation and determination of organic acids and phenolic compounds in fruit juices and drinks by high-performance liquid chromatography
Shui G and Leong LP
Journal of Chromatography A, 977(1), 89-96 (2002)
Simultaneous detection of dehydroascorbic, ascorbic, and some organic acids in fruits and vegetables by HPLC
Nisperos-Carriedo MO, et al.
Journal of Agricultural and Food Chemistry, 40(7), 1127-1130 (1992)
HPLC organic acid analysis in different citrus juices under reversed phase conditions
Violeta N, et al.
Notulae Botanicae Horti Agrobotanici Cluj-Napoca , 38(1), 44-48 (2010)
Determination of organic acids in alcoholic and nonalcoholic beverages by reversed-phase high-performance liquid chromatography
Amelin VG, et al.
Journal of Analytical Chemistry, 67(3), 262-268 (2012)

Protocolli

Separation of Fumaric acid; Oxalic acid; Citric acid

Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    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

      Helpful?

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

    1 answer
    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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