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Double distilled water

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This is an old revision of this page, as edited by Hadal (talk | contribs) at 03:52, 26 February 2005 (Reverted edits by 200.64.227.138 to last version by Jleedev). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

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.

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