D₂O

Appendix:Variations of "do" Translingual Symbol mul symbol A molecule of heavy water, comprising two deuterium atoms and an oxygen atom. mul informal uncountable heavy water Usage notes IUPAC recommends that deuterium should be called by the chemical symbol "2H", not "D".“IUPAC: Provisional Recommendations: Chemical Nomenclature and Structure Representation Division”, IR-3.3.2 It follows that heavy water should be called "2H2O", not "D2O". Related terms H₂O, light water DHO, semi-heavy water See also protium, hydrogen DHMO, dihydrogen monoxide References mul Chemical formulae H²₂O mul Inorganic compounds H²₂O