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The following other wikis use this file: Usage on af.wikipedia.org Buret; Usage on ar.wikipedia.org سحاحة; كيمياء رطبة; Usage on ast.wikipedia.org
A burette (also spelled as buret) [1] is a graduated glass tube with a tap at one end, for delivering known volumes of a liquid, especially in titrations. It is a long, graduated glass tube, with a stopcock at its lower end and a tapered capillary tube at the stopcock's outlet.
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Burette clamp is a scientific equipment which used specifically to hold and secure a burette on a stand, so that a burette is fixed and more convenient for the experiment. [1] Burette clamps can be made with many materials such as plastic and cast iron. However, an iron clamp with a rubber knob to hold the burette are usually more durable.
The slanted sides and narrow neck of this flask allow the contents of the flask to be mixed by swirling, without risk of spillage, making them suitable for titrations by placing it under the buret and adding solvent and the indicator in the Erlenmeyer flask. [7] Such features similarly make the flask suitable for boiling liquids.
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They come in a variety of sizes, and are used much like a burette, in that the volume is found by calculating the difference of the liquid level before and after. The last graduation mark is some distance from the tip, to avoid errors in measuring the narrower volume of the nozzle. [ 3 ]
Mohr burette. Mohr was the leading scientific chemist of his time in Germany, and the inventor of many improvements in analytical methodology. He invented an improved burette which had a tip at the bottom and a clamp (a 'Mohr's clip'), which made it much easier to use than its predecessors, which were more similar to a graduated cylinder.