Data are measured manually, due to the production batch and the use of different molds, there may be errors, please prevail in kind!
Specification(ml) |
Outer Diameter(mm) |
Height(mm) |
packing |
25 |
38 |
53 |
200 |
50 |
47 |
58 |
200 |
100 |
52 |
72 |
200 |
150 |
59 |
85 |
200 |
200 |
65 |
90 |
120 |
250 |
71 |
98 |
120 |
300 |
76 |
105 |
90 |
400 |
82 |
112 |
72 |
500 |
89 |
120 |
72 |
600 |
96 |
127 |
72 |
800 |
104 |
138 |
54 |
1000 |
114 |
155 |
36 |
2000 |
134 |
196 |
18 |
3000 |
160 |
245 |
8 |
5000 |
178 |
275 |
6 |
10000 |
230 |
330 |
4 |
A beaker is a common type of laboratory glassware, usually made of glass, plastic, or heat-resistant glass. Beakers are cylindrical in shape, with a slot cut into one side of the top for pouring liquids. Some beakers are marked on the outside to give a rough estimate of the volume of liquid in the beaker.
Beakers can generally be heated, in the heating should generally be evenly heated, it is best not to dry burning.
Beakers are often used to configure solutions and as reaction vessels for larger quantities of reagents. In operation, often with a glass rod or magnetic stirrer to stir.
Usage: Beakers are the most commonly used reaction containers for simple chemical reactions because their caliber is the same at the top and bottom, and it is very convenient to take liquids. When there is a scale on the outside of the beaker, the volume of the solution inside can be estimated. Some beakers also have a small white or burlap area on the outside wall where you can write in pencil to describe the name of the contents. 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 reactants need to be stirred, they are usually stirred with a glass rod. When the solution needs to be moved to another container, it can be poured out smoothly by tilting the beaker toward the side with the protruding notch. To prevent the solution from flowing down the outside of the cup, a glass rod can be touched to the mouth of the cup, and the solution attached to the mouth of the cup will flow smoothly down the rod.
Uses of Beakers.
1, material reactor, determine the products of combustion.
2, dissolve, crystallize a substance.
3,Serving, evaporation, concentration or heating of the solution.
Precautions: Beakers are used as a container for preparing solutions, dissolving substances and reacting with larger quantities of substances at room temperature or under heating. The use of beakers should pay attention to.
1, the beaker should be heated with asbestos mesh, in order to supply heat evenly. Can not use the flame to heat the beaker directly, because the bottom of the beaker is large, with the flame directly heated, can only be burned to the local, so that the glass is not uniform heat and cause cracking. When heated, the beaker wall must be wiped dry.
2, for dissolution, the amount of liquid to no more than 1/3 of the volume of the beaker is appropriate. And use a glass rod to stir gently and constantly. During the process of dissolution or dilution, do not touch the bottom or wall of the cup when stirring with the glass rod.
3, when heating the liquid, do not exceed 2/3 of the volume of the beaker, generally 1/2 of the volume of the beaker is appropriate.
4, heating corrosive drugs, a surface dish can be covered in the beaker mouth, so as to avoid the liquid dispatched.
5, not with a beaker of chemicals for a long time, so as not to fall into the dust and make the solution of water evaporation.
6, can not use the beaker to measure the liquid.
Flow into the conical flask along the stopper, and then wash the iodine solution into the flask with water on the mouth and stopper.