Ebullioscope

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The first ebullioscope was invented in 1838 by Brossard-Vidal, and was used for measuring alcoholic content. The advantage of this method was that the boiling point is relatively insensitive to other components such as sugars. Older alcoholimeters were based on measuring the density, which is more sensitive to the presence of other solutes. [P. Doré. "Leçons de chimie élémentaire appliquées aux arts industriels", 1857, 323-325.] [William Crookes, "The Chemical News and Journal of Physical Science", 1874, 30.]

A later version was built by the French chemist François-Marie Raoult,Fact|date=February 2008 but the difficulty to determine the exact temperature was overcome by the invention of the Beckmann thermometer by Ernst Otto Beckmann in 1887. This improvement made the ebullioscope a standard apparatus to determine the molecular weight of substances by its characteristic boiling-point elevation.

References


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Look at other dictionaries:

  • Ebullioscope — E*bul li*o*scope, n. [L. ebullire to boil up + scope.] (Phys. Chem.) An instrument for observing the boiling point of liquids, especially for determining the alcoholic strength of a mixture by the temperature at which it boils. [1913 Webster] …   The Collaborative International Dictionary of English

  • Ebullioscope — Ebullioscope, ein Alkoholometer zur Bestimmung des Alkohols, der in Wein und andern geistigen Getränken enthalten ist …   Herders Conversations-Lexikon

  • ébullioscope — ébulliométrie [ ebyljɔmetri ] n. f. • 1902; du lat. ebullire « bouillir » et métrie ♦ Sc. Mesure des températures d ébullition des corps à l aide d un ébulliomètre ou ébullioscope. ⇒ ébullioscopie. ● ébullioscope ou ébulliomètre nom masculin (du… …   Encyclopédie Universelle

  • ebullioscope — ebulioskopas statusas T sritis Standartizacija ir metrologija apibrėžtis Skysčių arba jų mišinių virimo temperatūros matuoklis. atitikmenys: angl. ebullioscope vok. Ebullioskop, n rus. эбуллиоскоп, m pranc. ébullioscope, m …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • ebullioscope — ebulioskopas statusas T sritis Standartizacija ir metrologija apibrėžtis Įtaisas medžiagos molio masei nustatyti remiantis ebulioskopija. atitikmenys: angl. ebullioscope vok. Ebullioskop, n rus. эбуллиоскоп, m pranc. ébullioscope, m …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • ebullioscope — ebulioskopas statusas T sritis fizika atitikmenys: angl. ebullioscope vok. Ebullioskop, n rus. эбуллиоскоп, m pranc. ébullioscope, m …   Fizikos terminų žodynas

  • ebullioscope —  ̷ ̷ˈ ̷ ̷lēəˌskōp, lyə noun Etymology: International Scientific Vocabulary ebullio + scope; originally formed as French ébullioscope : ebulliometer …   Useful english dictionary

  • ebullioscope — noun An instrument used to measure the boiling point of liquids See Also: ebullioscopic, ebullioscopy …   Wiktionary

  • ébullioscope — (é bul li o sko p ) s. m. Nom d appareils imaginés pour mesurer au moyen de l ébullition la richesse alcoolique des spiritueux. ÉTYMOLOGIE    Lat. ebullire, bouillir, et examiner (en grec); mot hybride et mal fait ; on pourrait dire zéoscope ou… …   Dictionnaire de la Langue Française d'Émile Littré

  • ebullioscope — instrument for measuring boiling point of liquids Scientific Instruments …   Phrontistery dictionary


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