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Funnel, beaker, glass rod, iron stand (including iron ring), filter paper.
Operation essentials
To achieve "one post, two low, three rely".
One post
Even if the filter paper is wet, it sticks to the inner wall of the funnel and no air bubbles remain.
(Prevent bubbles from slowing down the filtration speed.)
Second low
1. The edge of the filter paper is slightly below the edge of the funnel.
2. The liquid level is below the edge of the filter paper.
(Prevent liquid filtration from being dirty.)
Three-reliance
1. When pouring, the mouth of the beaker should be close to the glass rod.
2. The lower end of the glass rod is against the three-layer filter paper.
3. The long side nozzle at the lower end of the funnel abuts against the inner wall of the beaker.
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