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Flask is a micro web framework written in Python. It is classified as a microframework because it does not require particular tools or libraries. [ 2 ] It has no database abstraction layer, form validation, or any other components where pre-existing third-party libraries provide common functions.
Erlenmeyer flask. An Erlenmeyer flask, also known as a conical flask (British English) [1] or a titration flask, is a type of laboratory flask with a flat bottom, a conical body, and a cylindrical neck. It is named after the German chemist Emil Erlenmeyer (1825–1909), who invented it in 1860. [2]
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The vacuum flask was so efficient at keeping heat out, it was found possible to preserve the liquids for comparatively long periods, making an examination of their optical properties possible. Dewar did not profit from the widespread adoption of his vacuum flask – he lost a court case against Thermos concerning the patent for his invention ...
A shaker is a piece of laboratory equipment used to mix, blend, or agitate substances in a tube or flask by shaking them. It is mainly used in the fields of chemistry and biology. A shaker contains an oscillating board that is used to place the flasks, beakers, or test tubes.
Volumetric pipettes or bulb pipette allow the user to measure a volume of solution extremely precisely (precision of four significant figures). These pipettes have a large bulb with a long narrow portion above with a single graduation mark as it is calibrated for a single volume (like a volumetric flask). Typical volumes are 20, 50, and 100 mL.
5: Liebig-Kühler 6: Kühlwassereingang 7: Kühlwasserausgang 8: Rundkolben (Vorlage) für das Destillat 9: Druckausgleich, bei der Vakuumdestillation Schlauchverbindung zur Vakuumpumpe 10: Vorstoß 11: Regler für die Badtemperatur 12: Regler für die Drehzahl des Magnetrührers 13: Magnetrührgerät mit Heizplatte 14: Heizbad (Wasserbad, Ölbad)
A vacuum flask (also known as a Dewar flask, Dewar bottle or thermos) is an insulating storage vessel that slows the speed at which its contents change in temperature. It greatly lengthens the time over which its contents remain hotter or cooler than the flask's surroundings by trying to be as adiabatic as possible.