Shijiazhuang Standard Imp&exp Co.,Ltd.
Packaging: paper carton
Productivity: 3000 pc/Month
Place of Origin: China
Supply Ability: 3000 pc/Month
HS Code: 69091100
Buchner funnel/porcelain funnel
Descripation:Buchner funnel/porcelain funnel is a ceramic instrument used in the laboratory and is also made of plastic for filtration using vacuum or negative pressure suction. Commonly used in organic chemistry experiments to extract crystals. After the completion of this filter, you can also use a small amount of pure solvent to wash off the impurities on the crystal surface.
We have 40mm,60mm,80mm,100mm,120mm,150mm,200mm,250mm,300mm type.
Before use, prepare pumping equipment such as vacuum pump, suction filter, Buchner funnel/porcelain funnel (seal), vacuum tube (rubber tube), Filter Paper, cloth funnel and so on.
First use the water to filter the paper wet, pumping about, so that the filter paper close to the bottom of the funnel, you can prevent the leakage of things to be filtered. Pour into the filtrate, open the machine pumping, you can stir a little, leaving only filtered material.
Directly with ordinary funnel, paste the filter paper, then take the suction pump to filter (instead of Buchner funnel) is not enough. Because the funnel wall close to the filter paper, negative pressure suction filter does not work. Only the tip of the funnel under the tip of the pressure difference. Because the mouth is large, and only one mouth, it is easy to break. (Wet filter paper is not strong)
Product Categories : Glassware and chemicals Porcelain
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