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Supelco

Oxalic acid

analytical standard

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About This Item

Linear Formula:
HO2CCO2H
CAS Number:
144-62-7
Molecular Weight:
90.03
Beilstein/REAXYS Number:
385686
EC Number:
205-634-3
MDL number:
MFCD00002573
UNSPSC Code:
12352106
NACRES:
NA.24

grade

analytical standard

Quality Level

100

vapor density

4.4 (vs air)

vapor pressure

<0.01 mmHg ( 20 °C)

assay

98.0-102.0% (redox titration)

shelf life

limited shelf life, expiry date on the label

mp

189.5 °C (dec.) (lit.)

application(s)

cleaning products
cosmetics
food and beverages
personal care

format

neat

SMILES string

OC(=O)C(O)=O

InChI

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

InChI key

MUBZPKHOEPUJKR-UHFFFAOYSA-N

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General description

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.

Application

Oxalic acid may be used as an analytical standard for the determination of the analyte in juice samples, honey, food samples fruits, vegetables, alcoholic and non-alcoholic beverages and cosmetic formulations by various chromatography techniques.

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

Hazard Classifications

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

wgk_germany

WGK 1

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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)
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)
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)

Protocols

HPLC Analysis of Fumaric, Oxalic, and Citric Acid on SeQuant ZIC-HILIC

Separation of Fumaric acid; Oxalic acid; Citric acid

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