perchloric acid

chemical compound
ChemicalSubstance type_of_chemical_entity Q193956
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perchloric acid

Summary

perchloric acid is a type of chemical entity[1]. It ranks in the top 4% of type_of_chemical_entity entities by monthly Wikipedia readership (5,907 views/month).[2]

Key Facts

  • perchloric acid's instance of is recorded as type of chemical entity[3].
  • perchloric acid's canonical SMILES is recorded as OCl(=O)(=O)=O[4].
  • perchloric acid's chemical formula is recorded as HClO₄[5].
  • perchloric acid is a type of monoprotic acid[6].
  • perchloric acid is a type of chlorine oxoacid[7].
  • perchloric acid's Commons category is recorded as Perchloric acid[8].
  • perchloric acid comprises hydrogen[9].
  • perchloric acid comprises oxygen[10].
  • perchloric acid comprises chlorine[11].
  • perchloric acid comprises perchloryl group[12].
  • perchloric acid comprises hydroxyl[13].
  • perchloric acid's pKa is recorded as {'amount': '-10'}[14].
  • perchloric acid's MCN code is recorded as 2811.19.30[15].
  • perchloric acid's density is recorded as {'amount': '+1.76'}[16].
  • perchloric acid's mass is recorded as {'amount': '+99.956336'}[17].
  • perchloric acid's melting point is recorded as {'amount': '-102'}[18].
  • perchloric acid's boiling point is recorded as {'amount': '+203'}[19].
  • perchloric acid's standard enthalpy of formation is recorded as {'amount': '-40.4'}[20].
  • perchloric acid's safety classification and labelling is recorded as NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response[21].

Why It Matters

perchloric acid ranks in the top 4% of type_of_chemical_entity entities by monthly Wikipedia readership (5,907 views/month).[2] It has Wikipedia articles in 29 language editions, a strong signal of global cultural recognition.[22] It is known by 60 alternative names across languages and contexts.[23]

References

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

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . 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] ↑ . wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . wikidata.org.
  12. [14] ↑ . wikidata.org.
  13. [15] ↑ . wikidata.org.
  14. [16] ↑ . wikidata.org.
  15. [17] ↑ . wikidata.org.
  16. [18] ↑ . wikidata.org.
  17. [19] ↑ . wikidata.org.
  18. [20] ↑ . wikidata.org.
  19. [21] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [22] ↑ . Wikidata sitelinks. wikidata.org.
  3. [23] ↑ . 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). perchloric acid. Retrieved October 5, 2026, from https://4ort.xyz/entity/perchloric-acid
MLA “perchloric acid.” 4ort.xyz Knowledge Graph, 4ort.xyz, 5 Oct. 2026, https://4ort.xyz/entity/perchloric-acid.
BibTeX @misc{4ortxyz_perchloric-acid_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{perchloric acid}}, year = {2026}, url = {https://4ort.xyz/entity/perchloric-acid}, note = {Accessed: 2026-10-05}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): perchloric acid — https://4ort.xyz/entity/perchloric-acid (retrieved 2026-10-05)

Canonical URL: https://4ort.xyz/entity/perchloric-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. 10d ago · KrBot bot · 2026-09-26 view diff on Wikidata ↗
    Zvg number → 3960
    "/* wbsetclaimvalue:1| */ [[Property:P679]]: 3960, см. / see [[Template:Autofix|autofix]] на / on [[Property talk:P679]]"
  2. 13d ago · Mrwdat3 · 2026-09-23 view diff on Wikidata ↗
    Zvg number → 3960
    "/* wbcreateclaim-create:1| */ [[Property:P679]]: 003960, [[:toollabs:quickstatements/#/batch/275042|batch #275042]]"
  3. 19w ago · Twofivesixbot bot · 2026-05-24 view diff on Wikidata ↗
    Instance of → type of chemical entity
    Safety classification and labelling → NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response
    Boiling point → {'amount': '+203'}
    Pka → {'amount': '-10'}
    + 10 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-qualifiers:1||1|3 */ [[Property:P8189]]: 987007541765405171, mv to monolingual text names on J9U statements"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.