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241172

Sigma-Aldrich

Oxalic acid

ReagentPlus®, ≥99%

Sinonimo/i:

Aktisal, Aquisal

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About This Item

Formula condensata:
HO2CCO2H
Numero CAS:
144-62-7
Peso molecolare:
90.03
Beilstein:
385686
Numero CE:
205-634-3
Numero MDL:
MFCD00002573
Codice UNSPSC:
12352100
ID PubChem:
24854466
NACRES:
NA.22

Densità del vapore

4.4 (vs air)

Livello qualitativo

200

Tensione di vapore

<0.01 mmHg ( 20 °C)

Nome Commerciale

ReagentPlus®

Saggio

≥99%

Stato

powder or crystals

Punto di fusione

189.5 °C (dec.) (lit.)

Solubilità

water: soluble ~108 g/L at 25 °C

Densità

1.65 g/cm3 at 18.5 °C

Gruppo funzionale

carboxylic acid

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

Informazioni sul gene

human ... SRC(6714)

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Descrizione generale

Oxalic acid is present as potential impurity in some active pharmaceutical ingredients.

Applicazioni

Oxalic acid may be used as a catalyst to synthesize:
  • 2-aryl-1-arylmethyl-1H-benzimidazoles from o-phenylenediamine and aldehydes
  • 2-aryl-4,5-diphenyl-1H-imidazoles from benzyl/benzoin, ammonium acetate and aromatic aldehydes
  • bis-compounds of indole and 2-naphthol in an aqueous medium

Oxalic acid was used:
  • in the synthesis of hemicellulose hydrolysates of yellow poplars
  • in the synthesis of three-dimensionally ordered macroporous metal oxides or carbonates via templating with polystyrene spheres
  • as supporting electrolyte in the electrochemical synthesis of polyaniline-polypyrrole composite coatings

Note legali

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Pittogrammi

CorrosionExclamation mark
GHS05,GHS07

Avvertenze

Danger

Indicazioni di pericolo

H302 + H312,H318

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

Dispositivi di protezione individuale

dust mask type N95 (US), Eyeshields, Gloves

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Certificati d'analisi (COA)

Lot/Batch Number
SHBM1798
SHBF5681V
SHBF2278V
SHBC8974V
SHBC7057V

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Oxalic acid dihydrate puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., &#8805;99.5% (manganometric)

Sigma-Aldrich

33506

Oxalic acid dihydrate

Oxalic acid dihydrate for synthesis

Sigma-Aldrich

8.18242

Oxalic acid dihydrate

Oxalic acid dihydrate for analysis EMSURE&#174; ACS,ISO,Reag. Ph Eur

Supelco

1.00495

Oxalic acid dihydrate

Oxalic acid dihydrate EMPLURA&#174;

Supelco

1.00492

Oxalic acid dihydrate

Oxalic acid solution for 1000 ml, c(C&#8322;H&#8322;O&#8324;) = 0.005 mol/l (0.01 N) Titrisol&#174;

Supelco

1.09932

Oxalic acid solution

Oxalic acid solution for 1000 ml, c(C&#8322;H&#8322;O&#8324;) = 0.05 mol/l (0.1 N) Titrisol&#174;

Supelco

1.09965

Oxalic acid solution

Oxalic acid as a catalyst for efficient synthesis of bis-(indolyl) methanes, and 14-aryl-14H-dibenzo [a, j] xanthenes in water
Kokare ND, et al.
Chinese Chemical Letters = Zhongguo Hua Xue Kuai Bao, 19(10), 1186-1189 (2008)
Ly Thi Phi Trinh et al.
Bioresource technology, 161, 280-287 (2014-04-10)
An integrated detoxification process with electrodialysis (ED) followed by adsorption was performed to remove fermentation inhibitors from hemicellulose hydrolysates. The hydrolysates were prepared by oxalic acid pretreatment of yellow poplars at different temperatures. Of fermentation inhibitors, acetic acid showed high
One-pot efficient synthesis of 2-aryl-1-arylmethyl-1H-benzimidazoles and 2, 4, 5-triaryl-1H-imidazoles using oxalic acid catalyst
Kokare ND, et al.
Synthesis, 2007(18), 2829-2834 (2007)
Characterization of polyaniline?polypyrrole composite coatings on low carbon steel: a XPS and infrared spectroscopy study.
Applied Surface Science, 218(1), 58-69 (2003)
General synthesis of periodic macroporous solids by templated salt precipitation and chemical conversion.
Chemistry of Materials, 12(4), 1134-1141 (2000)
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