Distillation Dis`til*la"tion (d[i^]s`t[i^]l*l[=a]"sh[u^]n), n. [F. distillation, L. destillatio.] 1. The act of falling in drops, or the act of pouring out in drops. [1913 Webster]

2. That which falls in drops. [R.] --Johnson [1913 Webster]

3. (Chem.) The separation of the volatile parts of a substance from the more fixed; specifically, the operation of driving off gas or vapor from volatile liquids or solids, by heat in a retort or still, and the condensation of the products as far as possible by a cool receiver, alembic, or condenser; rectification; vaporization; condensation; as, the distillation of illuminating gas and coal, of alcohol from sour mash, or of boric acid in steam. [1913 Webster]

Note: The evaporation of water, its condensation into clouds, and its precipitation as rain, dew, frost, snow, or hail, is an illustration of natural distillation. [1913 Webster]

4. The substance extracted by distilling. --Shak. [1913 Webster]

{Destructive distillation} (Chem.), the distillation, especially of complex solid substances, so that the ultimate constituents are separated or evolved in new compounds, -- usually requiring a high degree of heat; as, the destructive distillation of soft coal or of wood.

{Dry distillation}, the distillation of substances by themselves, or without the addition of water or of other volatile solvent; as, the dry distillation of citric acid.

{Fractional distillation}. (Chem.) See under {Fractional}. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Нужен реферат?

Look at other dictionaries:

  • DISTILLATION — La distillation est une des méthodes de séparation les plus importantes dont on dispose pour résoudre un mélange en ses divers constituants. Elle est fondée sur le fait qu’une phase vapeur surmontant un liquide bouillant et en équilibre avec ce… …   Encyclopédie Universelle

  • distillation — DISTILLATION. s. f. Opération chimique, par laquelle, à l aide du feu, on sépare des vapeurs ou des liqueurs de quelques substances renfermées dans des vaisseaux. Mettre une plante en distillation. Faire unedistillation. [b]f♛/b] Il signifie… …   Dictionnaire de l'Académie Française 1798

  • distillation — index corpus Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • distillation — late 14c., process of distilling, from L.L. distillationem (nom. distillatio), noun of action from pp. stem of distillare (see DISTILL (Cf. distill)). Meaning product of distilling is from 1590s …   Etymology dictionary

  • distillation — [n] distillate cleansing, purification, refining; concepts 165,367 …   New thesaurus

  • distillation — d humeurs, Catarrhus …   Thresor de la langue françoyse

  • distillation — Distillation. s. f. v. L action par laquelle on distille. Faire des distillations. Il sign. aussi, La chose distillée. Distillations precieuses. voilà de belles distillations …   Dictionnaire de l'Académie française

  • distillation — [dis΄tə lā′shen] n. 1. a distilling; specif., the process of first heating a mixture to separate the more volatile from the less volatile parts, and then cooling and condensing the resulting vapor so as to produce a more nearly pure or refined… …   English World dictionary

  • Distillation — Distiller and Distillery redirect here. For other uses, see Distiller (disambiguation) and Distillery (disambiguation). For other uses, see Distillation (disambiguation). Laboratory display of distillation: 1: A heating device 2: Still pot 3:… …   Wikipedia

  • Distillation — Une colonne à distiller au musée Stella Matutina de Saint Leu, à la Réunion. La distillation est un procédé de séparation de mélange de substances liquides dont les températures d ébullition sont différentes. Elle permet de séparer les… …   Wikipédia en Français

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”