hydrate water

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• water of hydration — noun the water present in hydrated compounds • Syn: ↑water of crystallization, ↑water of crystallisation • Hypernyms: ↑water, ↑H2O * * * : water that is chemically combined with a substance to form a hydrate and can be expelled (as by heating)… …   Useful english dictionary

• Hydrate — is a term used in inorganic chemistry and organic chemistry to indicate that a substance contains water. The chemical state of the water varies widely between hydrates, some of which were so labeled before their chemical structure was understood …   Wikipedia

• Hydrate — Hy drate, n. [Gr. y dwr water: cf. F. hydrate.] (Chem.) (a) A compound formed by the union of water with some other substance, generally forming a neutral body, as certain crystallized salts. (b) A substance which does not contain water as such,… …   The Collaborative International Dictionary of English

• hydrate — (n.) 1802, compound of water and another chemical, from Fr. hydrate, coined c.1800 by French chemist Joseph Louis Proust (1754 1826) from Gk. hydr , stem of hydor water (see WATER (Cf. water) (n.1)). The verb is first attested 1850, to form a… …   Etymology dictionary

• Hydrate d'hydrazine — Modèle de …   Wikipédia en Français

• hydrate — [hī′drāt΄] n. [ HYDR(O) + ATE1] a compound formed by the chemical combination of water and some other substance in a definite molecular ratio [plaster of Paris, 2CaSO4·H2O, is a hydrate] vt., vi. hydrated, hydrating 1. to become or cause to… …   English World dictionary

• Hydrate — Hy drate, v. t. [imp. & p. p. {Hydrated}; p. pr. & vb. n. {Hydrating}.] To form into a hydrate; to combine with water. [1913 Webster] …   The Collaborative International Dictionary of English

• hydrate — ► NOUN Chemistry ▪ a compound in which water molecules are chemically bound to another compound or an element. ► VERB ▪ cause to absorb or combine with water. DERIVATIVES hydration noun …   English terms dictionary

• water of hydration — n water that is chemically combined with a substance to form a hydrate and can be expelled (as by heating) without essentially altering the composition of the substance …   Medical dictionary

• water of hydration — n. water which is chemically combined with a substance to form a hydrate and which can be removed, as by heating …   English World dictionary

• Water of crystallization — In crystallography, water of crystallization or water of hydration or crystallization water is water that occurs in crystals. Water of crystallization is necessary for the maintenance of crystalline properties, but capable of being removed by… …   Wikipedia