heavy water

chemical compound
ChemicalSubstance type_of_chemical_entity Q155890
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heavy water

Summary

heavy water is a type of chemical entity[1]. It ranks in the top 0.96% of type_of_chemical_entity entities by monthly Wikipedia readership (6,779 views/month, #121 of 12,596).[2]

Key Facts

  • heavy water's instance of is recorded as type of chemical entity[3].
  • heavy water's canonical SMILES is recorded as O[4].
  • heavy water's chemical formula is recorded as D₂O[5].
  • heavy water is a type of isotopic compound[6].
  • heavy water is used for nuclear reactor coolant[7].
  • heavy water's Commons category is recorded as Heavy water[8].
  • heavy water is the opposite of light water[9].
  • heavy water comprises deuterium[10].
  • heavy water comprises oxygen[11].
  • heavy water comprises hydrogen[12].
  • heavy water's different from is recorded as Lourdes water[13].
  • heavy water's different from is recorded as etching[14].
  • heavy water's different from is recorded as tritiated water[15].
  • heavy water's different from is recorded as semiheavy water[16].
  • heavy water's isomeric SMILES is recorded as [2H]O[2H][17].
  • heavy water's mass is recorded as {'unit': 'Q483261', 'amount': '+20.023'}[18].
  • heavy water's subject has role is recorded as antineoplastic[19].
  • heavy water's subject has role is recorded as radiation protection agent[20].
  • heavy water's safety classification and labelling is recorded as NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response[21].
  • heavy water's on focus list of Wikimedia project is recorded as Wikipedia:Vital articles/Level/4[22].
  • heavy water's isotopically modified form of is recorded as water[23].

Why It Matters

heavy water ranks in the top 0.96% of type_of_chemical_entity entities by monthly Wikipedia readership (6,779 views/month, #121 of 12,596).[2] It has Wikipedia articles in 29 language editions, a strong signal of global cultural recognition.[24] It is known by 52 alternative names across languages and contexts.[25]

References

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

Direct Wikidata claims

  1. [3] . 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] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . PubChem. Retrieved . wikidata.org.
  16. [18] . PubChem. Retrieved . wikidata.org.
  17. [19] . Medical Subject Headings. Retrieved . wikidata.org.
  18. [20] . Medical Subject Headings. Retrieved . wikidata.org.
  19. [21] . wikidata.org.
  20. [22] . wikidata.org.
  21. [23] . wikidata.org.

Class ancestry

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

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [24] . Wikidata sitelinks. wikidata.org.
  3. [25] . 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). heavy water. Retrieved May 3, 2026, from https://4ort.xyz/entity/heavy-water
MLA “heavy water.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/heavy-water.
BibTeX @misc{4ortxyz_heavy-water_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{heavy water}}, year = {2026}, url = {https://4ort.xyz/entity/heavy-water}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): heavy water — https://4ort.xyz/entity/heavy-water (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/heavy-water · 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 · Twofivesixbot bot · 2026-05-24 view diff on Wikidata ↗
    Isotopically modified form of water
    On focus list of wikimedia project Wikipedia:Vital articles/Level/4
    Different from Lourdes water, etching, tritiated water +1
    Subclass of
    + 12 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-qualifiers:1||1|2 */ [[Property:P8189]]: 987007550419805171, mv to monolingual text names on J9U statements"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.