They are made of heat resistant glass, so that the samples can be heated. These samples are generally intended to be compared. These have one open end and the other closed in a rounded shape. The test tubes are cylindrical and narrow instruments. They are also used to cover beakers, since the latter are not marketed with lids. They are often used to evaporate substances and to carry out small combustion reactions. This instrument is used to support small amounts of liquids or solids. The watch glass is a piece of glass of varied sizes that is slightly concave. These are to make estimates and not to make accurate measurements. However, do not heat it with a plug, since the pressure created by the heat could cause an explosion. This flask is heat resistant, so you can heat substances in it. The shape of this instrument allows you to beat and mix substances without running the risk of spilling.īecause of the narrow neck, you can also put a cork or rubber stopper in case it is necessary for the experiment to be carried out. The Erlenmeyer flask consists of a narrow neck that expands in a conical form to the base. However, they are not very accurate when it comes to measuring liquids, so the use of other instruments is preferred. They also have a measuring system, which allows you to measure volumes and liquids. Because they are heat resistant, they can be used to heat compounds.īeakers have a sort of beak on one of their edges, which allows pouring substances into other containers without running the risk of spilling. It is used as a container of substances that will be used in the near future. This instrument has several functions in a laboratory. Its measures vary: beakers can be found 10 cm high by 6 cm in diameter, 15 cm high by 9 cm in diameter, among others. The beaker is a wide-mouth cylindrical container. In most chemistry labs, you can find the same basic tools. List of main instruments of the chemistry laboratory Some of these are the volumetric flask, the Erlenmeyer flask, the beaker, the combustion ladle, the watch glass and the test tubes. Some examples of these are the slide (holding samples for the microscope), the petri dish (which allows to grow and store cultures of microorganisms), the funnel (to pass substances from one container to another), the dropper (which carries from drop to drop) and the pipette (which allows to transport precise volumes of substances).Īnother group of instruments are used to heat substances. You can also find other devices that allow you to transport substances, observe and store samples. With scales, various objects can be weighed. With the beaker you can also measure liquids, although these instruments are not very accurate.
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