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'''Double distilled water''' (ddH<sub>2</sub>O) is prepared by double [[distillation]] of deionized [[Distilled_water|water]]. It is used, among other things, when single distillation does not lead to sufficiently pure water for some applications in [[biochemistry]].

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[[Category:Forms of water]]
[[Category:Distillation]]

Revision as of 03:52, 26 February 2005

Double distilled water (ddH2O) is prepared by double distillation of deionized water. It is used, among other things, when single distillation does not lead to sufficiently pure water for some applications in biochemistry.