Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A hydrate whose solid contains four molecules of water of crystallization per molecule, or per unit cell

Etymologies

tetra- +‎ hydrate (Wiktionary)

Examples

  • Invented by Dmitri Mendeleev, the alternative technique of fractional crystallization was in the form of double ammonium nitrate tetrahydrate.

    CreationWiki - Recent changes [en]

  • I expect treating existing infestations with orange oil (XT-2000) and then using the silica or sodium borate (disodium octaborate tetrahydrate) to coat all of the interior wood framing would be a most effective treatment.

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