pH

measure of the acidity of an aqueous solution
Thing acidity_function Q40936
pH
Sébastien Bruneau · Public Domain · Wikimedia
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pH

Summary

pH is an acidity function[1]. pH draws 7,241 Wikipedia views per month (acidity_function category, ranking #1 of 2).[2]

Key Facts

  • pH is credited with the discovery of Søren Peter Lauritz Sørensen[3].
  • pH's instance of is recorded as acidity function[4].
  • pH is a type of chemical quantity[5].
  • pH is a type of logarithmic quantity[6].
  • pH's Commons category is recorded as ㏗[7].
  • pH's facet of is recorded as cooking[8].
  • pH's facet of is recorded as acid–base theory[9].
  • pH's facet of is recorded as aqueous solution[10].
  • pH's topic has template is recorded as Q25745522[11].
  • pH's main Wikidata property is recorded as P9440[12].
  • pH's name in kana is recorded as ピーエイチ[13].
  • pH's name in kana is recorded as すいそイオンしすう[14].
  • pH's permanent duplicated item is recorded as Q28972776[15].
  • pH's on focus list of Wikimedia project is recorded as Wikipedia:Vital articles/Level/4[16].
  • pH's maintained by WikiProject is recorded as WikiProject Mathematics[17].

Body

Definition and Type

pH's instance of is recorded as acidity function[4]. Recorded subclass of include chemical quantity[5] and logarithmic quantity[6].

Why It Matters

pH draws 7,241 Wikipedia views per month (acidity_function category, ranking #1 of 2).[2] pH has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[18] pH is known by 133 alternative names across languages and contexts.[19]

References

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

Direct Wikidata claims

  1. [4] . wikidata.org.
  2. [3] . 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.

Class ancestry

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

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [18] . Wikidata sitelinks. wikidata.org.
  3. [19] . 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). pH. Retrieved May 3, 2026, from https://4ort.xyz/entity/ph
MLA “pH.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/ph.
BibTeX @misc{4ortxyz_ph_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{pH}}, year = {2026}, url = {https://4ort.xyz/entity/ph}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): pH — https://4ort.xyz/entity/ph (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/ph · 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. 1d ago · Twofivesixbot bot · 2026-05-19 view diff on Wikidata ↗
    In defining formula \mathrm{pH}, \mbox{H}^+, [\cdot]
    Facet of cooking, acid–base theory, aqueous solution
    Maintained by wikiproject WikiProject Mathematics
    Local thumb
    + 12 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-qualifiers:1||1|6 */ [[Property:P2347]]: 4553, mv to monolingual text names on YSO statements"
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