# oleum

> solution of sulfur trioxide in sulfuric acid

**Wikidata**: [Q497073](https://www.wikidata.org/wiki/Q497073)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Oleum)  
**Source**: https://4ort.xyz/entity/oleum


## References

1. Fuming Sulfuric acid. ECHA Substance Infocard database
2. Freebase Data Dumps. 2013
3. Oleum. Hazardous Substances Data Bank. 2019
4. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)
5. UniChem