A burette is an instrument used to measure volumes.
The burette is a laboratory instrument used for the development of volumetric analysis . The term comes from the French word burette .
It is a tube made of glass that has a graduation . At the bottom, it has a key. Thanks to the burette, the volume of a liquid can be accurately determined.
Burette Features
We said that a burette is a laboratory instrument, material or equipment. Therefore, we are dealing with a utensil that is used in a space where scientific experiments and research are carried out.
Volumetric analyzes are carried out with the burette. The notion of volumetric refers to that linked to the measurement of a volume : a physical magnitude that indicates the extent of an object in height, width and length. It should be noted, on the other hand, that the idea of volumetric is also associated with volumetry , a procedure consisting of measuring the volume of a reagent that is needed to produce a certain effect in a liquid.
The burette, in this framework, is an elongated container whose diameter is uniform. By having a graduation, it serves to specify the volume of the liquid that is poured inside.
The cock located at the bottom of the burette makes it possible to accurately dose the liquid in question. With this key, you can pour drop by drop.
Key types
Today, most burettes are made of glass. The graduation can vary, although they generally use a scale based on milliliters .
The key is the element that differentiates between various types of burettes. The so-called Geissler burette , for example, includes a ground glass stopcock. In the case of the Mohr burette , it has a small glass sphere that works as a valve inside a rubber tube.
Currently it is also possible to distinguish between analog burettes and digital burettes . Analog burettes are traditional tubes that display the graduation printed on their surface; Digital burettes, on the other hand, have a screen that makes measurement easier.
In laboratories, burettes and other equipment are often used.
Use of the burette
When using a burette, several issues must be taken into account. It is essential that the tube is in a vertical position , for which it is generally fixed on a support .
For filling, there are burettes that have specific reservoirs. Otherwise, a funnel or pipette can be used. Once the liquid has been introduced into the buret, it must be checked that no bubbles have been generated that could distort the measurement.
A Spanish city
It is interesting to note that we can find this word in another area, which has nothing to do with chemistry . This is because Bureta is the name of a small town in Spain .
This municipality in the autonomous community of Aragón is part of the Campo de Borja region, in the province of Zaragoza . About two hundred people live in Bureta .
The Church of the Holy Cross and the Palace of the Counts of Bureta , both declared National Monuments , constitute a complex that stands as one of the great attractions of this area. These two buildings were built at the end of the 17th century .