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High School, chemistry, filtration or filtration belong to decompression filtration. it is not suitable for the separation of rubber-like precipitation and water. Please answer in detail. thank you! (23:51:14) Two, decompression filtrationPrinciple: the pumping pump decompresses the suction bottle, resulting in a difference in pressure between the bottle and the liquid level of the brandfunnel, thus speeding up the filtration speed.Operation steps: 1. install the instrument, put the filter paper into the bringer funnel, moisten the filter paper with distilled water, slightly open the faucet, and draw the filter paper to cling to the funnel porcelain board.2. transfer the solution first by tilting method, open the large faucet, and transfer the precipitation when the solution flows fast.3. when the liquid level in the suction filter bottle reaches the position of the branch pipe, unplug the rubber tube on the suction filter bottle and pour out the solution from the upper mouth of the suction filter
Design and construction of grade 10 dust-free workshop What are the elements of dust production in the dust-free workshop?The amount of dust produced in the dust-free workshop,From the equipment can be considered through part of the exhaust cleaning,Not into the interior;Goods,The amount of dust emitted by materials in the transportation process is compared with that of the human body,It's usually very small,Negligible;The use of color steel sandwich panels comes from the appearance of the building,Generally less than 10%,Therefore, the primary source of dust comes from the operators,Accounted for about 90%.1. if there is damage to existing equipment systems, pipelines, etc. during construction,The relevant personnel shall be notified immediately,To protect the safety of the site.2. wear safety helmets during construction,Seat belts are required for overhead operations.3. Wear a work permit at any time,The construction personnel shall follow the instructions of the owner and each en