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 (1,415 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 chemical structure is recorded as Heavy water.svg[4].
  • heavy water's GND ID is recorded as 4149228-6[5].
  • heavy water's CAS Registry Number is recorded as 7789-20-0[6].
  • heavy water's EC number is recorded as 232-148-9[7].
  • heavy water's canonical SMILES is recorded as O[8].
  • heavy water's InChI is recorded as InChI=1S/H2O/h1H2/i/hD2[9].
  • heavy water's InChIKey is recorded as XLYOFNOQVPJJNP-ZSJDYOACSA-N[10].
  • heavy water's Library of Congress authority ID is recorded as sh85037319[11].
  • heavy water's Bibliothèque nationale de France ID is recorded as 12152774m[12].
  • heavy water's chemical formula is recorded as D₂O[13].
  • heavy water's subclass of is recorded as isotopic compound[14].
  • heavy water's has use is recorded as nuclear reactor coolant[15].
  • heavy water's Commons category is recorded as Heavy water[16].
  • heavy water's opposite of is recorded as light water[17].
  • heavy water's MeSH descriptor ID is recorded as D017666[18].
  • heavy water's BNCF Thesaurus ID is recorded as 21410[19].
  • heavy water's has part is recorded as deuterium[20].
  • heavy water's has part is recorded as oxygen[21].
  • heavy water's has part is recorded as hydrogen[22].
  • heavy water's ChEMBL ID is recorded as CHEMBL1232306[23].
  • heavy water's Freebase ID is recorded as /m/03pxl[24].
  • heavy water's UNII is recorded as J65BV539M3[25].
  • heavy water's RTECS number is recorded as ZC0230000[26].
  • heavy water's ChemSpider ID is recorded as 23004[27].

Why It Matters

heavy water ranks in the top 0.96% of type_of_chemical_entity entities by monthly Wikipedia readership (1,415 views/month, #121 of 12,596).[2] It has Wikipedia articles in 29 language editions, a strong signal of global cultural recognition.[28] It is known by 52 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] . Global Substance Registration System. Retrieved . wikidata.org.
  5. [7] . Global Substance Registration System. Retrieved . wikidata.org.
  6. [8] . PubChem. Retrieved . wikidata.org.
  7. [9] . PubChem. Retrieved . wikidata.org.
  8. [10] . PubChem. Retrieved . wikidata.org.
  9. [11] . Integrated Authority File. wikidata.org.
  10. [12] . Nuovo soggettario. Retrieved . thes.bncf.firenze.sbn.it. Provenance: 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] . Nuovo soggettario. wikidata.org.
  18. [20] . wikidata.org.
  19. [21] . wikidata.org.
  20. [22] . wikidata.org.
  21. [23] . ChEMBL. Retrieved . wikidata.org.
  22. [24] . Freebase Data Dumps. wikidata.org.
  23. [25] . Global Substance Registration System. Retrieved . wikidata.org.
  24. [26] . wikidata.org.
  25. [27] . Q2311683. Retrieved . 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). 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)

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