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Using Filter Paper |
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Using Filter Paper Using filter paper is a procedure used to separate liquids from insoluble solids. In this procedure, the solid/liquid mixture is poured into a funnel in which a paper traps the solid particles and allows the liquid to pass through. The liquid can be collected in a container and the solid is left in the filter paper. The paper filter comes in a circular shape. It is formed by: 1. Fold the circle in half. 2. Fold it in half again to make it in quarters. 3. Fold it in half again to make it in eighths 4. Tear a small piece off one of the two top corners. This will prevent air from leaking down the fold of the filter. 5. Hold the filter paper on the top and open it into a circle by spreading the two sides of filter paper that have not been torn. Once the filter paper is formed place it in a funnel. Put a few drops of water on it so that the filter paper will stick to the sides of the funnel (CAUTION: the filter paper becomes weak and MUST be supported. If the solid is heavy it might rip the filter paper and the solid will fall into the container where the liquid is).
remember to tear off a little piece on the top. Please forward all questions, comments and criticisms to Gregory L. Curran. |
