Laboratory & educational products

Canfort Laboratory and Education Supplies Co., Ltd.


Big square filter paper, 1000 sheets

  • Product item:FJ048
  • Product price:US $ 200 / carton
  • Available sizes: 60x60, 65x65, 70x70, 80x80, 90x90, 100x100cm
Big square Filter paper, 1000 sheets (for industry and laboratory)

Unit price(60x60cm): US $ 200 / carton
Delivery fee is not included
Filter paper is a semi-permeable paper barrier placed perpendicular to a liquid or air flow. It is used to separate fine substances from liquids or air.Filter paper are widely used in laboratory experiments across many different fields, from biology to chemistry. The type of filter used will differ according to the purpose of the procedure and the chemicals involved. Generally, filter papers are used with laboratory techniques such as gravity or vacuum filtration.

Two major types of filter paper
1, Qualitative filter paper
Qualitative filter paper is used in qualitative analytical techniques to determine materials. There are different kinds of qualitative filter paper according to different pore size.
Product name Model Max. aperture(μm) Filtration velocity(s) Ash content(%) Ration(g/m2)
Qualitative filter paper 101 Fast 20-25 35 ≤0.15 80±4
102 Medium 15-20 35-70 ≤0.15 80±4
103 Slow 10-15 70-140 ≤0.15 80±4
2, Quantitative Filter Paper
Quantitative filter paper, also called ash-free filter paper, is used for quantitative and gravimetric analysis. During the manufacturing, producer use acid to make the paper ash-less and achieve high purity.
Product name Model Max. aperture(μm) Filtration velocity(s) Ash content(%) Ration(g/m2)
Qualitative filter paper 201 Fast 20-25 35 ≤0.01 80±4
202 Medium 15-20 35-70 ≤0.01 80±4
203 Slow 10-15 70-140 ≤0.01 80±4
filter paper
industry filter paper
big sheet filter paper
For small sheet round filter paper, please click "here"
For further details about laboratory plastic wares, please contact us  [email protected]

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