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calcium oxide

chemical compound
ChemicalSubstance type_of_chemical_entity Q185006
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calcium oxide

Summary

calcium oxide is a type of chemical entity[1]. It has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • calcium oxide's instance of is recorded as type of chemical entity[3].
  • calcium oxide's canonical SMILES is recorded as O=[Ca][4].
  • calcium oxide's chemical formula is recorded as CaO[5].
  • calcium oxide is a type of chemical compound[6].
  • calcium oxide's Commons category is recorded as Calcium oxide[7].
  • calcium oxide comprises calcium[8].
  • calcium oxide comprises oxygen[9].
  • calcium oxide's described by source is recorded as Armenian Soviet Encyclopedia, vol. 5[10].
  • calcium oxide's has effect is recorded as calcium oxide exposure[11].
  • calcium oxide's different from is recorded as lime (mineral)[12].
  • calcium oxide's NIOSH Pocket Guide ID is recorded as 0093[13].
  • calcium oxide's density is recorded as {'unit': 'Q13147228', 'amount': '+3.34'}[14].
  • calcium oxide's mass is recorded as {'unit': 'Q483261', 'amount': '+55.958'}[15].
  • calcium oxide's melting point is recorded as {'unit': 'Q42289', 'amount': '+4662'}[16].
  • calcium oxide's melting point is recorded as {'unit': 'Q25267', 'amount': '+2570'}[17].
  • calcium oxide's melting point is recorded as {'unit': 'Q25267', 'amount': '+2927'}[18].
  • calcium oxide's boiling point is recorded as {'unit': 'Q42289', 'amount': '+5162'}[19].
  • calcium oxide's boiling point is recorded as {'unit': 'Q25267', 'amount': '+2850'}[20].
  • calcium oxide's vapor pressure is recorded as {'unit': 'Q6859652', 'amount': '+0'}[21].
  • calcium oxide's immediately dangerous to life or health is recorded as {'unit': 'Q21077820', 'amount': '+25'}[22].
  • calcium oxide's ionization energy is recorded as {'unit': 'Q83327', 'amount': '+6.90'}[23].
  • calcium oxide's time-weighted average exposure limit is recorded as {'unit': 'Q21077820', 'amount': '+2'}[24].
  • calcium oxide's time-weighted average exposure limit is recorded as {'unit': 'Q21077820', 'amount': '+5'}[25].
  • calcium oxide's subject has role is recorded as dental material[26].
  • calcium oxide's standard enthalpy of formation is recorded as {'unit': 'Q752197', 'amount': '-635.09'}[27].

Why It Matters

calcium oxide has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[2] It is known by 111 alternative names across languages and contexts.[28]

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] ↑ . PubChem. Retrieved . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . cdc.gov. cdc.gov. Provenance: wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . wikidata.org.
  12. [14] ↑ . cdc.gov. cdc.gov. Provenance: wikidata.org.
  13. [15] ↑ . PubChem. Retrieved . wikidata.org.
  14. [16] ↑ . cdc.gov. cdc.gov. Provenance: wikidata.org.
  15. [17] ↑ . International Chemical Safety Card. Retrieved . wikidata.org.
  16. [18] ↑ . Basic laboratory and industrial chemicals: A CRC quick reference handbook. wikidata.org.
  17. [19] ↑ . cdc.gov. cdc.gov. Provenance: wikidata.org.
  18. [20] ↑ . International Chemical Safety Card. Retrieved . wikidata.org.
  19. [21] ↑ . cdc.gov. cdc.gov. Provenance: wikidata.org.
  20. [22] ↑ . cdc.gov. cdc.gov. Provenance: wikidata.org.
  21. [23] ↑ . Basic laboratory and industrial chemicals: A CRC quick reference handbook. wikidata.org.
  22. [24] ↑ . cdc.gov. cdc.gov. Provenance: wikidata.org.
  23. [25] ↑ . cdc.gov. cdc.gov. Provenance: wikidata.org.
  24. [26] ↑ . Medical Subject Headings. Retrieved . wikidata.org.
  25. [27] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata sitelinks. wikidata.org.
  2. [28] ↑ . 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). calcium oxide. Retrieved May 3, 2026, from https://4ort.xyz/entity/calcium-oxide
MLA “calcium oxide.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/calcium-oxide.
BibTeX @misc{4ortxyz_calcium-oxide_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{calcium oxide}}, year = {2026}, url = {https://4ort.xyz/entity/calcium-oxide}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): calcium oxide — https://4ort.xyz/entity/calcium-oxide (retrieved 2026-05-03)

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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. 16d ago · Nabbegat · 2026-06-19 view diff on Wikidata ↗
    Has effect → calcium oxide exposure
    Instance of → type of chemical entity
    Subclass of → —
    Subclass of → chemical compound
    + 19 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update-languages-short:0||tr */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/37300|batch #37300]]"
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