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oxalic acid

chemical compound
ChemicalSubstance type_of_chemical_entity Q184832
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Summary

oxalic acid is a type of chemical entity[1]. It ranks in the top 1% of type of chemical entity entities by monthly Wikipedia readership (14,720 views/month).[2]

Key Facts

  • Canonical SMILES: C(=O)(C(=O)O)O[3]
  • Chemical formula: C₂H₂O₄[4]
  • Subclass of: dicarboxylic acid[5], diprotic acid[6]
  • Commons category: Oxalic acid[7]
  • Has part(s): oxygen[8], carbon[9], hydrogen[10]
  • Found in taxon: Rhodiola rosea[11], Amaranthus tricolor[12], Penicillium oxalicum[13], Lupinus luteus[14], Aloe vera[15], Chlamydomonas reinhardtii[16], Actinidia arguta[17], Actinidia chinensis[18], Actinidia hemsleyana[19], Actinidia polygama[20], Albizia julibrissin[21], Onion[22], Night-scented lily[23], Artemisia scoparia[24]

Why It Matters

oxalic acid has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[25] It is known by 85 alternative names across languages and contexts.[26]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . PubChem. Retrieved . wikidata.org.
  2. [4] ↑ . PubChem. Retrieved . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . Flavonoids of the rhizomes of Rhodiola rosea. I. Tricin glucosides. wikidata.org.
  10. [12] ↑ . Nondestructive method for determination of water-soluble oxalate in cultured Amaranthus tricolor cells. wikidata.org.
  11. [13] ↑ . Morphological and chemical studies of Penicillium oxalicum, newly identified as a pathogen on greenhouse cucumbers. wikidata.org.
  12. [14] ↑ . Separation and identification of organic acids in root exudates ofLupinus luteus by capillary zone electrophoresis. wikidata.org.
  13. [15] ↑ . A Phytochemical Study of Aloe Vera Leaf**Based on a portion of a thesis submitted to the Faculty of the University of Wisconsin in partial fulfilment of the requirements for the degree of Doctor of Philosophy by Tom D. Rowe.. wikidata.org.
  14. [16] ↑ . The response of Chlamydomonas reinhardtii to nitrogen deprivation: a systems biology analysis. wikidata.org.
  15. [17] ↑ . Sugar and Organic Acid Analysis of Actinidia arguta and Rootstock–Scion Combinations of Actinidia arguta. wikidata.org.
  16. [18] ↑ . Sugar and Organic Acid Analysis of Actinidia arguta and Rootstock–Scion Combinations of Actinidia arguta. wikidata.org.
  17. [19] ↑ . Sugar and Organic Acid Analysis of Actinidia arguta and Rootstock–Scion Combinations of Actinidia arguta. wikidata.org.
  18. [20] ↑ . Sugar and Organic Acid Analysis of Actinidia arguta and Rootstock–Scion Combinations of Actinidia arguta. wikidata.org.
  19. [21] ↑ . Calcium-induced patterns of calcium-oxalate crystals in isolated leaflets of Gleditsia triacanthos L. and Albizia julibrissin Durazz. wikidata.org.
  20. [22] ↑ . Oxalate content of some leafy vegetables and dry legumes consumed widely in Egypt. wikidata.org.
  21. [23] ↑ . Food poisoning in the home. wikidata.org.
  22. [24] ↑ . Lactones of Artemisia scoparia. wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [25] ↑ . Wikidata sitelinks. wikidata.org.
  3. [26] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). oxalic acid. Retrieved October 17, 2026, from https://4ort.xyz/entity/oxalic-acid
MLA “oxalic acid.” 4ort.xyz Knowledge Graph, 4ort.xyz, 17 Oct. 2026, https://4ort.xyz/entity/oxalic-acid.
BibTeX @misc{4ortxyz_oxalic-acid_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{oxalic acid}}, year = {2026}, url = {https://4ort.xyz/entity/oxalic-acid}, note = {Accessed: 2026-10-17}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): oxalic acid — https://4ort.xyz/entity/oxalic-acid (retrieved 2026-10-17)

Canonical URL: https://4ort.xyz/entity/oxalic-acid · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 2d ago · OKA bot bot · 2026-10-16 view diff on Wikidata ↗
    Wikipedia languages → ['af', 'ar', 'az', 'azb', 'be', 'be_x_old', 'bg', 'bn', 'ca', 'commons', 'cs', '
    Sitelink count → 69
    Claims rich → —
    "/* wbeditentity-update-languages-and-other-short:0||nb */ SML ID oksalsyre deprecated (now SNL oksalsyre), other names from Store medisinske leksikon ([[Wikidata:Requests for permissions/Bot/OKA bot 2"
  2. 22d ago · KrBot bot · 2026-09-26 view diff on Wikidata ↗
    Zvg number → 17910
    "/* wbsetclaimvalue:1| */ Zvg number: 17910, см. / see [[Template:Autofix|autofix]] на / on [[Property talk:P679]]"
  3. 25d ago · Mrwdat3 · 2026-09-23 view diff on Wikidata ↗
    Zvg number → 17910
    "/* wbcreateclaim-create:1| */ Zvg number: 017910, [[:toollabs:quickstatements/#/batch/275042|batch #275042]]"
  4. 13w ago · Zyirkon · 2026-07-15 view diff on Wikidata ↗
    Chemical structure → Struktur Oxalsäure.svg, Oxalsäure2.svg
    "/* wbsetclaim-update:2||1 */ Chemical structure: Struktur Oxalsäure.svg"
  5. 14w ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    P14541 → CwmJt
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/40849|batch #40849]]: ZGBK ID"
  6. 21w ago · Twofivesixbot bot · 2026-05-24 view diff on Wikidata ↗
    Has effect → oxalic acid exposure
    Found in taxon → Rhodiola rosea, Amaranthus tricolor, Penicillium oxalicum +83
    Combustion enthalpy → {'unit': 'Q752197', 'amount': '-251.8'}
    Electric dipole moment → {'unit': 'Q28739766', 'amount': '+0.0'}
    + 27 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-statements-multiple-properties-update:0||2 */ mv to monolingual text names on J9U statements"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.