What is the wide neck conical flask mainly used for, and how should it be heated?
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Wide neck conical flasks are generally used in titration experiments. In order to prevent the titrant from splashing out of the bottle when it drops, causing experimental errors, the bottle was stirred on a magnetic stirrer. You can also hold the neck of the bottle with your hand and shake it with your wrist to mix well. It can also be used to contain reactants, quantitative analysis, and reflux heating, and its shape makes it ideal for these tasks.
What can a wide neck conical flask do?
Erlenmeyer flasks are generally used in titration experiments. In order to prevent the titrant from splashing out of the bottle when it drops, causing experimental errors, the bottle was stirred on a magnetic stirrer. You can also hold the neck of the bottle with your hand and shake it with your wrist to mix well. It can also be used to contain reactants, quantitative analysis, and reflux heating, and its shape makes it ideal for these tasks. In addition to being convenient to add a stopper, its long neck can also slow down the loss during heating and avoid chemical spills; as for its flat and wide bottom, it allows the conical flask to hold more solution and facilitates stirring with a glass rod. And allow the Erlenmeyer flask to lay flat on the table.
Can the wide neck conical flask be directly heated?
No, you need to add asbestos mesh.
(1) What can be directly heated: test tubes, crucibles, evaporating dishes, burning spoons
(2) Heated with asbestos net: beaker, flask (round bottom, flat bottom), conical flask
(3) Those that cannot be heated: gas collection bottle, reagent bottle (wide mouth, narrow mouth), Kip generator, drop bottle, it is recommended that the conical bottle be heated with a water bath as much as possible. Put the conical flask in a beaker and heat it, put an appropriate amount of water in the beaker to suspend the conical flask, put the beaker on the asbestos mesh, and then heat the asbestos mesh with an alcohol lamp.
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Post time: Mar-15-2022
