Traditional Culture Encyclopedia - Traditional stories - What are the commonly used solid-liquid separation methods in the laboratory? What are the precautions for each type?
What are the commonly used solid-liquid separation methods in the laboratory? What are the precautions for each type?
The most commonly used method is filtration, and there are also methods of absorbing supernatant after precipitation.
A common tool for filtration is a funnel. Put the filter material into the funnel, and then pour the solid-liquid mixture to be separated into the funnel.
Filter materials include filter paper, cotton, gauze, etc. Filter paper is divided into fast, medium and slow filter paper.
Which material to choose for filtration depends on the requirements of clarity and impurity degree of filtration night. If necessary, you can filter it several times.
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