8.16144

Oxalic acid

anhydrous for synthesis

• Synonym(s): Oxalic acid, Ethanedioic acid dihydrate
• Empirical Formula (Hill Notation): C₂H₂O₄
• CAS Number: 144-62-7
• Molecular Weight: 90.03
• MDL number: MFCD00002573
• UNSPSC Code: 12352106
• EC Index Number: 205-634-3

Properties

• vapor pressure: <1 Pa ( 25 °C)
• Quality Level: 200
• 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

Description

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).

Safety Information

• Pictograms: GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H302 + H312 - H318
• Precautionary Statements: P264 - P270 - P280 - P301 + P312 - P302 + P352 + P312 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1