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Sigma-Aldrich

Oxalic acid

anhydrous for synthesis

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Synonym(s):
Oxalic acid, Ethanedioic acid dihydrate
Empirical Formula (Hill Notation):
C2H2O4
CAS Number:
Molecular Weight:
90.03
MDL number:
UNSPSC Code:
12352106
EC Index Number:
205-634-3
NACRES:
NA.22

vapor pressure

<1 Pa ( 25 °C)

Quality Level

Assay

≥99% (manganometric)

form

solid

potency

375 mg/kg LD50, oral (Rat)

pH

1 (20 °C, 100 g/L in H2O)

mp

189 °C (decomposition)

solubility

108 g/L

density

1.9 g/cm3 at 20 °C

bulk density

750 kg/m3

storage temp.

2-30°C

InChI

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

InChI key

MUBZPKHOEPUJKR-UHFFFAOYSA-N

Application

  • Glycerol conversion into added-value products on Ni-Cu based catalysts: Discusses the role of oxalic acid among various catalysts in glycerol conversion to value-added products (JLC Fajín, MNDS Cordeiro, 2024).
  • Synthesis, Crystal Structure, Hirshfeld Surface and Computational Analysis of Bis-Oxalate Ethanol Solvate: Explores the crystal structure and properties of a new oxalate compound (P Solo, M Arockia doss, 2024).
  • Synergistic Enhancement of Barrier Performance in Silanized Modified Hemicellulose/PVA Composite Films through Oxalic Acid Crosslinking: Discusses the enhancement of material properties through oxalic acid treatment (J Wang et al., 2024).

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 1


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