The use of plastic beakers and the introduction of uses

The use of plastic beakers and the introduction of the use of

　　How to use beakers and how to use them

　　Usage and use

　　Beakers are the most commonly used reaction containers for simple chemical reactions because they have the same caliber up and down and are very convenient for taking liquids. When there is a scale on the outer wall of the beaker, the volume of the solution inside can be estimated. Some beakers also have a small area on the outside wall that is white or rimmed, in which the name of the substance can be described in pencil. If there is no such area on the beaker, the name of the contents can be written on a label and attached to the outside of the beaker for identification purposes. When the reaction requires stirring, the reaction is usually stirred with a glass rod. When the solution needs to be moved to another container, the solution can be poured out smoothly by tilting the mouth of the beaker toward the side with the protruding notch. To prevent the solution from flowing down the outside of the cup wall, a glass rod can be used to touch the mouth of the cup, then the solution attached to the mouth of the cup can flow down the glass rod smoothly (drainage).

　　1. Reactor of a substance, determination of combustion products.

　　2、Dissolve and crystallize a substance.

　　3、Serve, evaporate and concentrate or heat the solution.