D₂O

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See also: Appendix:Variations of "do"

Translingual

Symbol

D₂O

  1. A molecule of heavy water, comprising two deuterium atoms and an oxygen atom.
  2. (informal, uncountable) heavy water

Usage notes

IUPAC recommends that deuterium should be called by the chemical symbol "2H", not "D".[1] It follows that heavy water should be called "2H2O", not "D2O".

See also

References

  1. ^ “IUPAC: Provisional Recommendations: Chemical Nomenclature and Structure Representation Division”, IR-3.3.2
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