# hydronium

> aqueous cation H₃O⁺, the type of oxonium ion produced by protonation of water

**Wikidata**: [Q849881](https://www.wikidata.org/wiki/Q849881)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Hydronium)  
**Source**: https://4ort.xyz/entity/hydronium


## References

1. oxonium. ChEBI
2. [CAS Common Chemistry](https://commonchemistry.cas.org/detail?cas_rn=13968-08-6)
3. Oxonium. PubChem
4. ChEBI release 2020-09-01
5. Hydronium. ChemSpider
6. Binas (2nd edition)
7. KBpedia
8. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)
9. UniChem