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Ethanedioic acid high purity CAS NO.97993-78-7

Model No.︰97993-78-7
Brand Name︰BSY
Country of Origin︰China
Unit Price︰-
Minimum Order︰10 pc
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Product Description

ethanedioic acid chemical properties

molecule structure of ethanedioic acid (cas no.97993-78-7):
iupac name: oxalic acid 
molecular weight: 90.03488 g/mol 
molecular formula: c2h2o4 
density: 0.99 g/ml at 25 °c
melting point: 189.5 °c (dec.)(lit.)
boiling point: 365.1 °c at 760 mmhg 
flash point: 101-157 °c
index of refraction: 1.48 
molar refractivity: 14.44 cm3 
molar volume: 50.8 cm3 
surface tension: 87.3 dyne/cm 
enthalpy of vaporization: 67.15 kj/mol 
vapour pressure: 2.51e-06 mmhg at 25 °c 
water solubility: 90 g/l (20 °c) 
sublimation: 101-157 °c 
stability: stable, but moisture sensitive. incompatible with metals
xlogp3-aa: -0.3 
h-bond donor: 2 
h-bond acceptor: 4 
rotatable bond count: 1 
exact mass: 89.995309 
monoisotopic mass: 89.995309 
topological polar surface area: 74.6 
heavy atom count: 6 
canonical smiles: c(=o)(c(=o)o)o
inchi: inchi=1s/c2h2o4/c3-1(4)2(5)6/h(h,3,4)(h,5,6) 
inchikey: mubzpkhoepujkr-uhfffaoysa-n
einecs: 205-634-3 
product categories: intermediates;water ttreatment chemicals;eluent concentrates for icanalytical standards;alphabetic;chromatography/ce reagents;ion chromatography;o;c1 to c5;carbonyl compounds;carboxylic acids;acid solutionstitration;complexometric solutions (idranal);complexometric titration (idranal);analytical reagents for general use;o-p, puriss p.a.;puriss p.a.;acid concentrates;concentrates (e.g. fixanal);acid solutions;titration;volumetric solutions

ethanedioic acid uses

 ethanedioic acid is mainly used in cleaning or bleaching. most ethanedioic acid is used as a cleaning agent, especially for the removal of rust or removal of iron from minerals specimens. about 25% of produced ethanedioic acid is used as a mordant in dyeing processes. it is used in bleaches, especially for pulpwood. ethanedioic acid is also an important reagent in lanthanide chemistry. it is used in the restoration of old wood.

ethanedioic acid production

 ethanedioic acid is mainly made by the oxidation of carbohydrates or glucose using nitric acid or air in the presence of vanadium pentoxide. a variety of precursors can be used including glycolic acid and ethylene glycol. a newer method entails oxidative carbonylation of alcohols to give the diesters of oxalic acid:
4 roh + 4 co + o2 → 2 (co2r)2 + 2 h2o 
these diesters are subsequently hydrolyzed to ethanedioic acid.

Payment Terms︰TT/WU/MG
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