# dihydrogen

> primary form in which hydrogen is found

**Wikidata**: [Q3027893](https://www.wikidata.org/wiki/Q3027893)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Dihydrogen)  
**Source**: https://4ort.xyz/entity/dihydrogen


## References

1. Chemical Abstracts Service
2. PubChem
3. ChEBI release 2020-09-01
4. Gene Ontology release 2019-11-16
5. Gene Ontology release 2020-05-02
6. [Source](http://geneontology.org/external2go/rhea2go)
7. A community-driven global reconstruction of human metabolism.
8. [Source](http://www.molecularhydrogenfoundation.org/frequent-qa/)
9. Hydrogen. Hazardous Substances Data Bank. 2019
10. CRC Handbook of Chemistry and Physics (78th edition)
11. Basic laboratory and industrial chemicals: A CRC quick reference handbook
12. [Source](https://sites.google.com/site/ellesmerealevelchemistry/module-3-periodic-table-energy/3-2-physical-chemistry-1/3-2-1-enthalpy-changes/3-2-1-d-enthalpy-change-definitions)
13. Hydrogen. ECHA Substance Infocard database
14. [Source](https://chem.libretexts.org/Bookshelves/General_Chemistry/Book%3A_ChemPRIME_(Moore_et_al.)/16%3A_Entropy_and_Spontaneous_Reactions/16.06%3A_Standard_Molar_Entropies)
15. HYDROGEN. CosIng database
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17. [Source](https://www.ashrae.org/technical-resources/standards-and-guidelines/ashrae-refrigerant-designations)
18. [Source](https://cameochemicals.noaa.gov/chemical/3606)
19. [Source](https://echa.europa.eu/pl/information-on-chemicals/cl-inventory-database/-/discli/details/53968)
20. [Source](http://gestis.itrust.de/nxt/gateway.dll/gestis_en/000000.xml?f=templates&fn=default.htm&vid=gestiseng:sdbeng)
21. KBpedia
22. UniChem