Made of pure cellulose treated with hydrochloric and hydrofluoric acid, filter paper is quantitative paper used for straining with fast flow rates and good retention. It creates a semi-permeable barrier perpendicular to a liquid or airflow in order to separate fine substances from liquids or air. Different grades of filter paper are available for performing routine laboratory work, ranging from coarse to fine filtration of particulates.
Eisco Premium Qualitative Filter Papers
Pack of 100 premium Qualitative Filter Papers with medium speed (85 gsm) and 10 µm pore size.
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Student Filter Paper
A good quality paper recommended for student use and all routine filtering operations. This is a strong filter paper with a medium flow rate and retention.
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Standard Grade Qualitative Filter Papers
Qualitative Filter Paper is available in three standard grades.
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VWR® Quantitative Grade Filter Paper Circles
Quantitative filter papers are used for gravimetric analyses or filtrations where the precipitate is to be recovered.
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Medium Grade, 15 μm
The most widely used qualitative filter paper for routine applications.
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Glass Microfiber Filter Paper
The glass filter paper is excellent for microwave testing where temperatures get very high such as for use in a food experiment where all the moisture is microwaved out to see how much solid is left behind. Withstands temperatures to 500 °C. Size of each: 11 cm diameter.