Burette

Burette
Diagram of modern burette

A burette (also buret) is a vertical cylindrical piece of laboratory glassware with a volumetric graduation on its full length and a precision tap, or stopcock, on the bottom. It is used to dispense known amounts of a liquid reagent in experiments for which such precision is necessary, such as a titration experiment. Burettes are extremely accurate - a 50 cm3 burette has a tolerance of 0.1 cm3 (class B) or 0.06 cm3 (class A).

Burettes measure from the top since they are used to measure liquids dispensed out the bottom. The difference between starting and final volume is the amount dispensed.

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v · d · eLaboratory equipment
Glassware

Beaker · Boston round (bottle) · Büchner funnel · Burette · Cold finger · Condenser · Conical measure · Cuvette · Dean-Stark apparatus · Dropping funnel · Eudiometer · Evaporating dish · Gas syringe · Graduated cylinder · Pipette · Petri dish · Pycnometer · Separatory funnel · Soxhlet extractor · Watch glass

Büchner · Erlenmeyer · Fernbach · Fleaker · Florence · Retort · Round-bottom · Schlenk · Volumetric

Boiling · Ignition · NMR · Test · Thiele · Thistle
Other
See also Instruments used in medical laboratories

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Look at other dictionaries:

  • burette — [ byrɛt ] n. f. • buyrete 1305; de buire 1 ♦ Liturg. Flacon destiné à contenir les saintes huiles, ou l eau et le vin de la messe. 2 ♦ Petit flacon à goulot. Burettes d un huilier. ♢ Récipient à tubulure pour verser un liquide goutte à goutte.… …   Encyclopédie Universelle

  • Bürette — (franz., Maßröhre), mit einer Skala versehene Glasröhre, die dazu dient, von einer Flüssigkeit nach und nach bestimmte kleine Mengen auszugießen, und namentlich in der Maßanalyse benutzt wird. 1 Bürette mit Quetschhahn. 2 mit Glashahn. 3… …   Meyers Großes Konversations-Lexikon

  • burette — Burette. s. f. Petite buye. Burette de vin. burette d eau. Il se dit plus particulierement de celles où l on met le vin & l eau pour dire la Messe …   Dictionnaire de l'Académie française

  • burette — 1836, from Fr. burette small vase, dim. of buire vase for liquors, in O.Fr. jug, variant of buie (12c.) bottle, water jog, from Frankish *buk or some similar Germanic source …   Etymology dictionary

  • Burette — Bu*rette , n. [F., can, cruet, dim. of buire flagon.] (Chem.) An apparatus for delivering measured quantities of liquid or for measuring the quantity of liquid or gas received or discharged. It consists essentially of a graduated glass tube,… …   The Collaborative International Dictionary of English

  • Bürette — (frz.), Maßröhre, eine in gleiche Raumteile (meist Kubikzentimeter) eingeteilte kalibrierte, oben offene Glasröhre zum Abmessen kleiner Flüssigkeitsmengen, namentlich in der analytischen Chemie (Titriermethode) gebräuchlich. Unterschieden werden… …   Kleines Konversations-Lexikon

  • burette — (US also buret) ► NOUN ▪ a graduated glass tube with a tap at one end, for delivering known volumes of a liquid. ORIGIN French, from buire jug …   English terms dictionary

  • burette — or buret [byo͞o ret′] n. [Fr < OFr buirette, dim. of buire, flagon, var. of buie, jug < Frank * buk < IE * bhōu , to swell] a graduated glass tube with a stopcock at the bottom, used as by chemists for measuring small quantities of… …   English World dictionary

  • Burette — Pour les articles homonymes, voir Burette (homonymie). Burette graduée de 50 ml. Une burette est un accessoire de laboratoire permettant d’ajouter au goutte à goutte un …   Wikipédia en Français

  • Bürette — Eine Bürette (frz. Kännchen; veraltet: Ausfluss Rosette) ist eine kalibrierte Glasröhre mit Skala und eingeschliffenem Hahn am unteren Ende und dient im chemischen Labor zur quantitativen Abmessung kleiner Flüssigkeitsvolumina in der Titration… …   Deutsch Wikipedia

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