Dinitrogen pentoxide

Dinitrogen pentoxide is a chemical compound. It is made by removing water from nitric acid, so it is also called nitric anhydride. Its chemical formula is N2O5. It is a powerful oxidizing agent. It is a white solid.

It is made by reacting phosphorus(V) oxide with nitric acid. The phosphorus(V) oxide removes the water from the nitric acid. It can be used as an alternative to nitric acid to add the nitro group −NO2 to some chemical compounds.[1] It is toxic as it can make nitrogen dioxide gas.

Sources

  1. ↑ Kharchenko, Alexandr K.; Fauziev, Ruslan V.; Zharkov, Mikhail N.; Kuchurov, Ilya V.; Zlotin, Sergei G. (2021). "Nitration of aromatics with dinitrogen pentoxide in a liquefied 1,1,1,2-tetrafluoroethane medium". RSC Advances. 11 (42): 25841–25847. Bibcode:2021RSCAd..1125841K. doi:10.1039/D1RA04536A. PMC 9037121. PMID 35479456.
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