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cobalt(II) oxide

chemical compound
Class type of: cobalt oxide Q411283

Facts

15 properties
Instance of
type of chemical entity
Subclass of
cobalt oxide[4]
2022 Harmonized System Code
282200[16]
Canonical SMILES
[O-2].[Co+2][2]
Chemical formula
CoO[3]
Crystal system
face-centered cubic[5]
Density
+6450.0[8]
Has part(s) of the class
oxygen, cobalt[11][12]
Mass
+74.928[9]
Melting point
+1830[10]
Point group
cubic-hexoctahedral[6]
Space group
space group Fm-3m[7]
Standard enthalpy of formation
-237.74[15]
Standard molar entropy
+52.85[14]
Subject has role
carcinogen[13]
🏷️ Also known as
en cobaltous oxide en cobalt monoxide en cobalt(II) oxide ar أكسيد كوبالت ثنائي ar CoO ar Cobalt(II) oxide ar أكسيد الكوبالت الثنائي cs Oxid kobaltnatý cs CoO de Cobalt(II)-oxid de Kobalt(II)-oxid es óxido de cobalto (II) es Oxido de cobalto fa اکسید کبالت fa اکسید کبالت(II) fi kobolttioksidi fr oxyde de cobalt(II) id Kobalt(II) oksida it monossido di cobalto it CoO
🔖 Identifiers · 23
CA PROP 65 ID
cobalt-ii-oxide
CAS Registry Number
1307-96-6
COD ID
1533087
ChemSpider ID
8117730
DSSTOX compound identifier
DTXCID4030201
DSSTox substance ID
DTXSID6051649
EC number
215-154-6
ECHA Substance Infocard ID
100.013.777
Freebase ID
/m/0d8hsb
HCIS ID
1038
HSDB ID
239
ICSC ID
1551
Show all 23 identifiers +11
InChI
InChI=1S/Co.O/q+2;-2
InChIKey
IUYLTEAJCNAMJK-UHFFFAOYSA-N
Microsoft Academic ID (discontinued)
2777101320
PubChem CID
14786, 9942118
RTECS number
GG2800000
Spectral Database for Organic Compounds ID
40108
SureChEMBL ID
34993
UN number
3288
UNII
V9X9644V7Q
UniChem compound ID
23493031
ZVG number
3600

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🔗 Connections
Has part(s) 2
oxygen, cobalt
Belongs to 1
zaffre
Subject has role 1
carcinogen
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Summary

cobalt(II) oxide is a type of chemical entity[1].

References

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

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . wikidata.org.
  10. [11] ↑ . wikidata.org.
  11. [12] ↑ . wikidata.org.
  12. [13] ↑ . wikidata.org.
  13. [14] ↑ . wikidata.org.
  14. [15] ↑ . wikidata.org.
  15. [16] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. 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). cobalt(II) oxide. Retrieved November 4, 2026, from https://4ort.xyz/entity/cobalt-ii-oxide
MLA “cobalt(II) oxide.” 4ort.xyz Knowledge Graph, 4ort.xyz, 4 Nov. 2026, https://4ort.xyz/entity/cobalt-ii-oxide.
BibTeX @misc{4ortxyz_cobalt-ii-oxide_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{cobalt(II) oxide}}, year = {2026}, url = {https://4ort.xyz/entity/cobalt-ii-oxide}, note = {Accessed: 2026-11-04}}
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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. 6w ago · KrBot bot · 2026-09-26 view diff on Wikidata ↗
    ZVG number → 3600
    "/* wbsetclaimvalue:1| */ ZVG number: 3600, см. / see [[Template:Autofix|autofix]] на / on [[Property talk:P679]]"
  2. 6w ago · Mrwdat3 · 2026-09-23 view diff on Wikidata ↗
    Has part(s) → —
    ZVG number → 3600
    Standard enthalpy of formation → {'amount': '-237.74'}
    Has part(s) of the class → oxygen, cobalt
    + 2 other properties edited (see Wikidata diff for full list)
    "/* wbcreateclaim-create:1| */ ZVG number: 003600, [[:toollabs:quickstatements/#/batch/275042|batch #275042]]"
  3. 10w ago · Baum64 · 2026-08-23 view diff on Wikidata ↗
    Has part(s) of the class → oxygen, cobalt
    "/* wbcreateclaim-create:1| */ Has part(s) of the class: oxygen, [[:toollabs:quickstatements/#/batch/269324|batch #269324]]"
  4. 11w ago · KrBot bot · 2026-08-19 view diff on Wikidata ↗
    Crystal system → face-centered cubic
    Density → {'amount': '+6450.0'}
    "/* wbsetreference-set:2| */ Space group: space group Fm-3m, см. / see [[Template:Autofix|autofix]] на / on [[Property talk:P356]]"
  5. 11w ago · Baum64 · 2026-08-18 view diff on Wikidata ↗
    COD ID → 1533087
    Space group → space group Fm-3m
    "/* wbcreateclaim-create:1| */ COD ID: 1533087, [[:toollabs:quickstatements/#/batch/269136|batch #269136]]"
  6. 20w ago · Nabbegat · 2026-06-19 view diff on Wikidata ↗
    Has parts → —
    Instance of → type of chemical entity
    Subclass of → —
    Aliases → —
    + 6 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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