Lab Fast Speed Qualitative Filter Paper For Chemical Qualitative Analysis
Filter paper Nature
Choosing the right filter paper can be decided by considering the following four factors.
Hardness: Filter paper will become wet in the filter, some of the experimental steps for long-term filtration should consider the use of wet paper after more tough filter.
Filtration efficiency: filter paper seepage hole density and density, affecting its filtration efficiency. High-efficiency filter paper filter speed, but also high resolution.
Capacity: solid particles accumulated during filtration may clog the pores on the filter paper, so the more water-permeable pores are denser, which means the higher the capacity, the more filtration capacity is allowed.
Applicability: Some filter paper is made by using special manufacturing steps. For example, when testing medicine to determine the nitrogen content in blood, it is necessary to use nitrogen-free filter paper.
Note that filter paper can not filter zinc chloride, or filter paper will be damaged by corrosion of zinc chloride
How to use filter paper:
1.fold the paper in half.
2.then fold it in half agian
3.Tear off a corner to allow better seating of the paper in the funnel.
4. Open the side that was not torn when fitting the paper in the funnel.
For more and quick communication, please talk by wechat/whatsapp 0086 18730237522
contacts: Eva zhao
