hydroxide ion

anion
ChemicalSubstance type_of_chemical_entity Q199877
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hydroxide ion

Summary

hydroxide ion is a type of chemical entity[1]. It ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (146 views/month).[2]

Key Facts

  • hydroxide ion's instance of is recorded as type of chemical entity[3].
  • hydroxide ion's canonical SMILES is recorded as [OH-][4].
  • hydroxide ion's chemical formula is recorded as HO⁻[5].
  • hydroxide ion is a type of polyatomic anion[6].
  • hydroxide ion is a type of monoanion[7].
  • hydroxide ion is a type of monoprotic acid[8].
  • hydroxide ion is part of hydroxide salt[9].
  • hydroxide ion's Commons category is recorded as Hydroxide ion[10].
  • hydroxide ion comprises oxygen[11].
  • hydroxide ion comprises hydrogen[12].

Body

Works and Contributions

Things named for hydroxide ion include feroxyhyte[13], a mineral species[14] and behoite[15], a mineral species[16].

Why It Matters

hydroxide ion ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (146 views/month).[2] It has Wikipedia articles in 11 language editions, a strong signal of global cultural recognition.[17] It is known by 69 alternative names across languages and contexts.[18]

Entities named for it include feroxyhyte[13], a mineral species[14] and behoite[15], a mineral species[16].

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.

Inverse relationships (entities pointing at this one)

  1. [13] ↑ . wikidata.org. → on this site
  2. [15] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [14] ↑ . Wikidata. wikidata.org. → on this site
  2. [16] ↑ . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [17] ↑ . Wikidata sitelinks. wikidata.org.
  3. [18] ↑ . 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). hydroxide ion. Retrieved October 2, 2026, from https://4ort.xyz/entity/hydroxide-ion
MLA “hydroxide ion.” 4ort.xyz Knowledge Graph, 4ort.xyz, 2 Oct. 2026, https://4ort.xyz/entity/hydroxide-ion.
BibTeX @misc{4ortxyz_hydroxide-ion_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{hydroxide ion}}, year = {2026}, url = {https://4ort.xyz/entity/hydroxide-ion}, note = {Accessed: 2026-10-02}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): hydroxide ion — https://4ort.xyz/entity/hydroxide-ion (retrieved 2026-10-02)

Canonical URL: https://4ort.xyz/entity/hydroxide-ion · 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. 14d ago · Wostr · 2026-09-19 view diff on Wikidata ↗
    Subject has role → primary metabolite, lyate ion
    Instance of → —
    Part of → hydroxide salt
    Subclass of → —
    + 12 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:1||1 */ [[Property:P1296]]: 0187541, Moving from [[Q104116]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.