hydration

Hydration may refer to:

• Hydrate, a term used to indicate that a substance contains water
• Hydration enthalpy, energy released from water reactions
• Hydration reaction, a chemical addition reaction where a hydroxyl group and proton are added to a compound
• Hydration shell, a type of solvation shell
• Hydration system, an apparatus that helps its user drink enough liquid while engaged in physical activity
  • Hydration pack, a type of hydration system composed of a carry-on pack used for hydration
• Mineral hydration, an inorganic chemical reaction where water is added to the crystal structure of a mineral
• Oral rehydration therapy, hydration as a health treatment
  • Rehydration, health concern in the management of dehydration
• Tissue hydration, the supply and retention of adequate water in biological tissues
• Water of hydration, water that occurs within crystals

Unter Hydratation oder Hydration, versteht man die Anlagerung von Wassermolekülen

• an gelöste Ionen. Dadurch entsteht eine Hydrathülle (auch Hydrat-Sphäre).
• an polare Neutralmoleküle, insbesondere wenn Wasserstoffbrückenbindungen gebildet werden können.
• in Festkörpern (Mineralien) als Kristallwasser zur Bildung von Hydraten.

Mit „Hydratation“ bezeichnet man somit den Spezialfall der Solvatation für das Lösungsmittel Wasser.