Iron(III) oxide-hydroxide

hydrous ferric oxide (HFO)
ChemicalSubstance type_of_chemical_entity Q412739
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Iron(III) oxide-hydroxide

Summary

Iron(III) oxide-hydroxide is a type of chemical entity[1]. It ranks in the top 5% of type_of_chemical_entity entities by monthly Wikipedia readership (163 views/month).[2]

Key Facts

  • Iron(III) oxide-hydroxide's instance of is recorded as type of chemical entity[3].
  • Iron(III) oxide-hydroxide's CAS Registry Number is recorded as 20344-49-4[4].
  • Iron(III) oxide-hydroxide's EC number is recorded as 243-746-4[5].
  • Iron(III) oxide-hydroxide's canonical SMILES is recorded as O[Fe]=O[6].
  • Iron(III) oxide-hydroxide's InChI is recorded as InChI=1S/Fe.H2O.O/h;1H2;/q+1;;/p-1[7].
  • Iron(III) oxide-hydroxide's InChIKey is recorded as AEIXRCIKZIZYPM-UHFFFAOYSA-M[8].
  • Iron(III) oxide-hydroxide's chemical formula is recorded as FeHO₂[9].
  • Iron(III) oxide-hydroxide's subclass of is recorded as hydroxide salt[10].
  • Iron(III) oxide-hydroxide's has part is recorded as hydrogen[11].
  • Iron(III) oxide-hydroxide's has part is recorded as iron[12].
  • Iron(III) oxide-hydroxide's has part is recorded as oxygen[13].
  • Iron(III) oxide-hydroxide's Freebase ID is recorded as /m/090_zn[14].
  • Iron(III) oxide-hydroxide's UNII is recorded as 87PZU03K0K[15].
  • Iron(III) oxide-hydroxide's ChemSpider ID is recorded as 82623[16].
  • Iron(III) oxide-hydroxide's PubChem CID is recorded as 91502[17].
  • Iron(III) oxide-hydroxide's ZVG number is recorded as 1300[18].
  • Iron(III) oxide-hydroxide's mass is recorded as {'unit': 'Q483261', 'amount': '+88.932592'}[19].
  • Iron(III) oxide-hydroxide's ECHA Substance Infocard ID is recorded as 100.039.754[20].
  • Iron(III) oxide-hydroxide's SureChEMBL ID is recorded as 1639061[21].
  • Iron(III) oxide-hydroxide's SureChEMBL ID is recorded as 345408[22].
  • Iron(III) oxide-hydroxide's CosIng number is recorded as 34593[23].
  • Iron(III) oxide-hydroxide's DSSTox substance ID is recorded as DTXSID3042057[24].
  • Iron(III) oxide-hydroxide's DSSTox substance ID is recorded as DTXSID801318339[25].
  • Iron(III) oxide-hydroxide's conjugate base is recorded as iron(III) oxide-hydroxide(1-)[26].
  • Iron(III) oxide-hydroxide's safety classification and labelling is recorded as NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response[27].

Why It Matters

Iron(III) oxide-hydroxide ranks in the top 5% of type_of_chemical_entity entities by monthly Wikipedia readership (163 views/month).[2] It has Wikipedia articles in 18 language editions, a strong signal of global cultural recognition.[28] It is known by 25 alternative names across languages and contexts.[29]

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] . PubChem. Retrieved . wikidata.org.
  5. [7] . PubChem. Retrieved . wikidata.org.
  6. [8] . PubChem. Retrieved . wikidata.org.
  7. [9] . PubChem. Retrieved . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . Freebase Data Dumps. wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . Q2311683. Retrieved . wikidata.org.
  15. [17] . PubChem. Retrieved . wikidata.org.
  16. [18] . wikidata.org.
  17. [19] . PubChem. Retrieved . wikidata.org.
  18. [20] . ECHA Substance Infocard database. Retrieved . wikidata.org.
  19. [21] . wikidata.org.
  20. [22] . wikidata.org.
  21. [23] . CosIng database. Retrieved . wikidata.org.
  22. [24] . Mapping file of InChIStrings, InChIKeys and DTXSIDs for the EPA CompTox Dashboard. wikidata.org.
  23. [25] . wikidata.org.
  24. [26] . wikidata.org.
  25. [27] . wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [28] . Wikidata sitelinks. wikidata.org.
  3. [29] . 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). Iron(III) oxide-hydroxide. Retrieved May 3, 2026, from https://4ort.xyz/entity/iron-iii-oxide-hydroxide
MLA “Iron(III) oxide-hydroxide.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/iron-iii-oxide-hydroxide.
BibTeX @misc{4ortxyz_iron-iii-oxide-hydroxide_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Iron(III) oxide-hydroxide}}, year = {2026}, url = {https://4ort.xyz/entity/iron-iii-oxide-hydroxide}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Iron(III) oxide-hydroxide — https://4ort.xyz/entity/iron-iii-oxide-hydroxide (retrieved 2026-05-03)

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