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The Thiele tube, named after the German chemist Johannes Thiele, is a laboratory glassware designed to contain and heat an oil bath. Such a setup is commonly used in the determination of the melting point or boiling point of a substance. The apparatus resembles a glass test tube with an attached handle.
A Fisher–Johns apparatus. A melting-point apparatus is a scientific instrument used to determine the melting point of a substance. Some types of melting-point apparatuses include the Thiele tube, Fisher-Johns apparatus, Gallenkamp (Electronic) melting-point apparatus and automatic melting-point apparatus.
A Thiele tube is an alternative heating vessel. The Siwoloboff method is used to determine the boiling point of small samples of liquid chemicals. A sample in an ignition tube (also called a fusion tube) is attached to a thermometer with a rubber band, and immersed in a Thiele tube, water bath, or other suitable medium for heating. A sealed ...
Friedrich Karl Johannes Thiele (May 13, 1865 – April 17, 1918) was a German chemist and a prominent professor at several universities, including those in Munich and Strasbourg. He developed many laboratory techniques related to isolation of organic compounds.
Thiele (Aar), a river of Hesse, Germany, tributary of the Aar; Thiele's interpolation formula defines a rational function, expressed as a continued fraction, that interpolates a given set of values; Thiele modulus, in Chemistry; Thiele tube, laboratory glassware; German destroyer Z2 Georg Thiele, built for the German Navy during the mid-1930s
A thistle tube is a piece of laboratory glassware consisting of a shaft of tube, with a reservoir and funnel-like section at the top. Thistle tubes are typically used by chemists to add liquid to an existing system or apparatus. Thistle funnels are used to add small volumes of liquids to an exact position.
A basic melting point apparatus for the analysis of crystalline solids consists of an oil bath with a transparent window (most basic design: a Thiele tube) and a simple magnifier. Several grains of a solid are placed in a thin glass tube and partially immersed in the oil bath.
1907: Thiele tube by Johannes Thiele [165] 1913: Coal liquefaction (Bergius process) by Friedrich Bergius [166] [167] 1913: Identification of protactinium by Oswald Helmuth Göhring [168] 1925: Discovery of rhenium by Otto Berg, Ida Noddack and Walter Noddack [169] 1928: Diels–Alder reaction by Kurt Alder and Otto Diels [170]