osmium tetroxide

chemical compound
ChemicalSubstance type_of_chemical_entity Q422021
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osmium tetroxide

Summary

osmium tetroxide is a type of chemical entity[1]. It ranks in the top 5% of type_of_chemical_entity entities by monthly Wikipedia readership (504 views/month).[2]

Key Facts

  • osmium tetroxide's instance of is recorded as type of chemical entity[3].
  • osmium tetroxide's canonical SMILES is recorded as O=Os(=O)=OOs(=O)=O">[4].
  • osmium tetroxide's chemical formula is recorded as OsO₄[5].
  • osmium tetroxide is a type of inorganic osmium compound[6].
  • osmium tetroxide is a type of oxide[7].
  • osmium tetroxide's Commons category is recorded as Osmium tetroxide[8].
  • osmium tetroxide comprises oxygen[9].
  • osmium tetroxide comprises osmium[10].
  • osmium tetroxide's crystal system is recorded as monoclinic crystal system[11].
  • osmium tetroxide's has effect is recorded as osmium tetroxide exposure[12].
  • osmium tetroxide's NIOSH Pocket Guide ID is recorded as 0473[13].
  • osmium tetroxide's density is recorded as {'unit': 'Q13147228', 'amount': '+5.10'}[14].
  • osmium tetroxide's mass is recorded as {'unit': 'Q483261', 'amount': '+255.941'}[15].
  • osmium tetroxide's melting point is recorded as {'unit': 'Q42289', 'amount': '+105'}[16].
  • osmium tetroxide's melting point is recorded as {'unit': 'Q25267', 'amount': '+41'}[17].
  • osmium tetroxide's boiling point is recorded as {'unit': 'Q42289', 'amount': '+266'}[18].
  • osmium tetroxide's boiling point is recorded as {'unit': 'Q25267', 'amount': '+135'}[19].
  • osmium tetroxide's vapor pressure is recorded as {'unit': 'Q6859652', 'amount': '+7'}[20].
  • osmium tetroxide's immediately dangerous to life or health is recorded as {'unit': 'Q21077820', 'amount': '+1'}[21].
  • osmium tetroxide's solubility is recorded as {'unit': 'Q21127659', 'amount': '+6'}[22].
  • osmium tetroxide's ionization energy is recorded as {'unit': 'Q83327', 'amount': '+12.6'}[23].
  • osmium tetroxide's ionization energy is recorded as {'unit': 'Q83327', 'amount': '+12.32'}[24].
  • osmium tetroxide's time-weighted average exposure limit is recorded as {'unit': 'Q21077820', 'amount': '+0.002'}[25].
  • osmium tetroxide's short-term exposure limit is recorded as {'unit': 'Q21077820', 'amount': '+0.006'}[26].
  • osmium tetroxide's standard enthalpy of formation is recorded as {'unit': 'Q752197', 'amount': '-386'}[27].

Why It Matters

osmium tetroxide ranks in the top 5% of type_of_chemical_entity entities by monthly Wikipedia readership (504 views/month).[2] It has Wikipedia articles in 26 language editions, a strong signal of global cultural recognition.[28] It is known by 38 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] . 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] . Retrieved . wikidata.org.
  10. [12] . cdc.gov. cdc.gov. Provenance: 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] . Basic laboratory and industrial chemicals: A CRC quick reference handbook. wikidata.org.
  16. [18] . cdc.gov. cdc.gov. Provenance: wikidata.org.
  17. [19] . Basic laboratory and industrial chemicals: A CRC quick reference handbook. wikidata.org.
  18. [20] . cdc.gov. cdc.gov. Provenance: wikidata.org.
  19. [21] . cdc.gov. cdc.gov. Provenance: wikidata.org.
  20. [22] . cdc.gov. cdc.gov. Provenance: wikidata.org.
  21. [23] . cdc.gov. cdc.gov. Provenance: wikidata.org.
  22. [24] . Basic laboratory and industrial chemicals: A CRC quick reference handbook. wikidata.org.
  23. [25] . cdc.gov. cdc.gov. Provenance: wikidata.org.
  24. [26] . cdc.gov. cdc.gov. Provenance: wikidata.org.
  25. [27] . Q1624777. 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). osmium tetroxide. Retrieved May 3, 2026, from https://4ort.xyz/entity/osmium-tetroxide
MLA “osmium tetroxide.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/osmium-tetroxide.
BibTeX @misc{4ortxyz_osmium-tetroxide_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{osmium tetroxide}}, year = {2026}, url = {https://4ort.xyz/entity/osmium-tetroxide}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): osmium tetroxide — https://4ort.xyz/entity/osmium-tetroxide (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/osmium-tetroxide · 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. 7d ago · Twofivesixbot bot · 2026-05-25 view diff on Wikidata ↗
    Density {'unit': 'Q13147228', 'amount': '+5.10'}
    Boiling point {'unit': 'Q42289', 'amount': '+266'}, {'unit': 'Q25267', 'amount': '+135'}
    Instance of
    Has effect osmium tetroxide exposure
    + 18 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-qualifiers:1||1|1 */ [[Property:P8189]]: 987007532975405171, mv to monolingual text names on J9U statements"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.