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chlorine dioxide

chemical compound
Class type of: radical, chlorine oxide, molecular compound Q422080

Facts

23 properties
Instance of
type of chemical entity
Subclass of
radical, chlorine oxide, molecular compound[4][5][6]
Associated hazard
chlorine dioxide exposure
Boiling point
+52, +11[15][16]
Canonical SMILES
O=Cl[O][2]
Chemical formula
ClO₂[3]
Density
+1.6[11]
Has characteristic
flammable liquid, flammable gas[8][9]
Has effect
chlorine dioxide exposure[7]
Has part(s) of the class
oxygen, chlorine[23][24]
Immediately dangerous to life or health
+13.8[18]
Ionization energy
+10.36[20]
Mass
+66.959[12]
Melting point
-74, -59[13][14]
NIOSH Pocket Guide ID
0116[10]
Safety classification and labelling
NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response
Short-term exposure limit
+0.9[22]
Solubility
+0.3[19]
Standard enthalpy of formation
+104.6
Standard molar entropy
+257.22
Subject has role
dental disinfectants
Time-weighted average exposure limit
+0.3[21]
Vapor pressure
+1[17]
🏷️ Also known as
en chlorine dioxide en ClO2(.) en ClO2 en [ClO2](.) en (ClO2)(.) en chlorine(IV) oxide ar ثنائي أكسيد الكلور cs Oxid chloričitý cs Kysličník chloričitý cs ClO2 de Chlordioxid de ClO2 de 926 de OClO de Chlor(IV)-oxid es dióxido de cloro fa دی‌اکسید کلر fa دی اکسید کلر fi klooridioksidi fr 10049-04-4
🔖 Identifiers · 51
Library of Congress authority ID
sh94003518
GND ID
4131414-1
OpenAlex ID
C2778894954
Image (Wikimedia Commons)
Chlorine dioxide gas and solution.jpg ↗
BNCF Thesaurus ID
783
CAB ID
97634
CAMEO Chemicals ID
370
CAS Registry Number
10049-04-4
ChEBI ID
29415
ChemSpider ID
23251
CosIng number
90751
DSSTOX compound identifier
DTXCID803958
Show all 51 identifiers +39
DSSTox substance ID
DTXSID5023958
Dewey Decimal Classification
546.732
DrugBank ID
DB12453
EC number
233-162-8
ECHA Substance Infocard ID
100.030.135
Encyclopædia Britannica Online ID
topic/chlorine-dioxide
Freebase ID
/m/02bzbx
Gmelin number
1265
HCIS ID
859, 860
HSDB ID
517
Human Metabolome Database ID
HMDB0034826
ICSC ID
0127
InChI
InChI=1S/ClO2/c2-1-3
InChIKey
OSVXSBDYLRYLIG-UHFFFAOYSA-N
Interlingual Index ID
i114867
KEGG ID
C18368
MeSH descriptor ID
C025109
Microsoft Academic ID (discontinued)
2778894954
NALT ID
25346
NDL Authority ID
00575747
NL CR AUT ID
ph163875
National Library of Israel J9U ID
987007537150605171
OSHA Occupational Chemical Database ID
16
PesticideInfo chemical ID
PRI2007
Probes And Drugs ID
PD058045
PubChem CID
24870
RTECS number
FO3000000
RxNorm CUI
20799
Römpp online ID
RD-03-01421
SVKKL authority ID
0323477-oxid-chloricity
ScienceDirect topic ID
pharmacology-toxicology-and-pharmaceutical-science/chlorine-dioxide, nursing-and-health-professions/chlorine-dioxide, medicine-and-dentistry/chlorine-dioxide, chemistry/chlorine-dioxide
Spectral Database for Organic Compounds ID
8583
SureChEMBL ID
29360116
UK Parliament thesaurus ID
509027
UNII
8061YMS4RM
UniChem compound ID
1101166
YSO ID
14011
Yale LUX ID
concept/6557d127-d393-4992-93ab-d1561aa5f243
ZVG number
1640

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🔗 Connections
Has part(s) 2
oxygen, chlorine
Subclass of 2
radical, chlorine oxide
Has characteristic 1
flammable liquid
← Different from 1
chloryl ion
Press Enter · cited answer in seconds

Summary

chlorine dioxide 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.
  16. [17] ↑ . wikidata.org.
  17. [18] ↑ . wikidata.org.
  18. [19] ↑ . wikidata.org.
  19. [20] ↑ . wikidata.org.
  20. [21] ↑ . wikidata.org.
  21. [22] ↑ . wikidata.org.
  22. [23] ↑ . wikidata.org.
  23. [24] ↑ . 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). chlorine dioxide. Retrieved November 4, 2026, from https://4ort.xyz/entity/chlorine-dioxide
MLA “chlorine dioxide.” 4ort.xyz Knowledge Graph, 4ort.xyz, 4 Nov. 2026, https://4ort.xyz/entity/chlorine-dioxide.
BibTeX @misc{4ortxyz_chlorine-dioxide_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{chlorine dioxide}}, year = {2026}, url = {https://4ort.xyz/entity/chlorine-dioxide}, note = {Accessed: 2026-11-04}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): chlorine dioxide — https://4ort.xyz/entity/chlorine-dioxide (retrieved 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 → 1640
    "/* wbsetclaimvalue:1| */ ZVG number: 1640, см. / see [[Template:Autofix|autofix]] на / on [[Property talk:P679]]"
  2. 6w ago · Mrwdat3 · 2026-09-23 view diff on Wikidata ↗
    ZVG number → 1640
    "/* wbcreateclaim-create:1| */ ZVG number: 001640, [[:toollabs:quickstatements/#/batch/275042|batch #275042]]"
  3. 10w ago · Baum64 · 2026-08-23 view diff on Wikidata ↗
    Has part(s) → —
    Standard enthalpy of formation → {'amount': '+104.6'}
    Has part(s) of the class → oxygen, chlorine
    Standard molar entropy → {'amount': '+257.22'}
    "/* wbcreateclaim-create:1| */ Has part(s) of the class: oxygen, [[:toollabs:quickstatements/#/batch/269324|batch #269324]]"
  4. 21w ago · Jindřich Rubeš · 2026-06-11 view diff on Wikidata ↗
    SVKKL authority ID → 0323477-oxid-chloricity
    "/* wbcreateclaim-create:1| */ SVKKL authority ID: 0323477-oxid-chloricity, [[:toollabs:quickstatements/#/batch/259496|batch #259496]]"
  5. 24w ago · Twofivesixbot bot · 2026-05-19 view diff on Wikidata ↗
    Density → {'amount': '+1.6'}
    Boiling point → {'amount': '+52'}, {'amount': '+11'}
    Subject has role → dental disinfectants
    Aliases → —
    + 18 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-statements-multiple-properties-update:0||2 */ mv to monolingual text names on YSO statements"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.