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Made of pure cellulose treated with hydrochloric and hydrofluoric acid, filter papers are used for straining with good retention and flow rates. These cellulose filters create 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 various laboratory applications including routine lab work, ranging from coarse to fine filtration of particulates. VWR offers a wide range of qualitative and quantitative filter papers with varying pore size, particle retention, flow rate and filtration times.
Description:
9.0cm diameter. Very useful in clarification of cloudy solutions. Widely used in water analysis. Fine porosity. Slow flow rate. 2.5um particle retention.
Description:
15.0cm diameter. Creped wood pulp paper. Thin, hardened, high wet-strength paper is resistant to weak acids and alkalis. Recommended for general and high-volume process filtration. Medium porosity. Medium flow rate. 8-12um particle retention.
Description:
12.5cm diameter. Very useful in clarification of cloudy solutions. Widely used in water analysis. Fine porosity. Slow flow rate. 2.5um particle retention.
Description:
For electrophoresis and blotting procedures. White surface. Flow Rate: 130mm/30 minutes (water). Paper Thickness: 0.34mm. Sheet Size: 35x45cm.
Description:
18.5cm diameter. For critical gravimetric analysis. Widely used for precipitates with tendencies toward colloidal dispersion. Suitable for gravity or low suction filtration. Fine porosity. Slow flow rate. 2.5um particle retention.
Description:
5.5cm diameter. Hardened. For fast filtration of gelatinous precipitates and coarse particles from alkaline/acid solutions during gravimetric analysis. High wet-strength, high purity. Coarse porosity. Fast flow rate. 20-25um particle retention.
Description:
15.0cm diameter. Silicone impregnated paper functions as a rapid phase separator in place of conventional separatory funnels. Paper retains aqueous phase and passes through hydrophobic phase. Medium porosity. Medium flow rate. 11um particle retention.
Description:
27.0cm diameter. For a wide range of laboratory applications, liquid clarification, gas filtration, air pollution analysis, and soil analysis. Medium porosity. Medium flow rate. 11um particle retention.
Description:
For electrophoresis and blotting procedures. White surface. Flow Rate: 130mm/30 minutes (water). Paper Thickness: 0.34mm. Roll Size: 2cmx100m.
Description:
12.5cm diameter. Ashless, rough paper for air monitoring, metallurgical analysis, and chromatography of compounds with Rf values that are well separated. Large porosity. Fast flow rate. 20-30um particle retention.
Description:
15.0cm diameter. Ashless, rough paper for air monitoring, metallurgical analysis, and chromatography of compounds with Rf values that are well separated. Large porosity. Fast flow rate. 20-30um particle retention.
Description:
32.0cm diameter. More retentive, slower, and more absorbent than Grade 1 Filter Paper by Whatman*. For general-purpose lab applications, monitoring specific contaminants in the atmosphere, and soil testing. Medium porosity. Medium flow rate. 8um particle retention.
Description:
For electrophoresis and blotting procedures. White surface. Flow Rate: 130mm/30 minutes (water). Paper Thickness: 0.34mm. Sheet Size: 15x17cm.
Description:
7.0cm diameter. Hardened, low ash paper for gelatinous precipitates and coarse particles. High wet strength makes this grade suitable for fast vacuum assisted filtration. Coarse porosity. Fast flow rate. 20-25um particle retention.
Description:
Qualitative Filter Paper. The most widely used Filter Paper in the Whatman range. Medium retention and flow rate. Extended range of circle sizes from 2 to 50 cm diameter. Sheets and strips also available.
Description:
12.5cm diameter. Ashless paper for gravimetric analysis with very fine particle retention. Thinner than Grade 42 with lower ash weight per sample and almost twice the flow rate. Fine porosity. Slow flow rate. 3um particle retention.
Description:
Qualitative Filter Paper. 25 um. Strong filter with very fast flow rate. Ideal for coarse particles and gelatinous precipitates. Smooth surface.
Description:
Reeve Angel Brand Filter Papers Grade 202, 25.0 cm. Provides minimum filtration speed of coarse particles. The surfaced is creped, hence it has a greater true surface area than smooth surface Filter Paper of the same diameter.
Description:
For electrophoresis and blotting procedures. White surface. Flow Rate: 130mm/30 minutes (water). Paper Thickness: 0.34mm. Roll Size: 10cmx100m.
Description:
Folded Prepleated Grade 595 1/2 folded filters, 90 mm, 100/pk. Thin filter paper, medium-fast with medium to fine particle retention. Used for many routine analytical applications in different industries
Description:
Sheets. Thickness 0.36 mm. Flow rate 130 mm/30 min. Fairly thick paper for general applications with medium heavy solute loadings. Gives compact spot. Frequently used for separation of norganics and for electrophoresis.
Description:
24.0cm diameter. Hardened. For fast filtration of gelatinous precipitates and coarse particles from alkaline/acid solutions during gravimetric analysis. High wet-strength, high purity. Coarse porosity. Fast flow rate. 20-25um particle retention.
Description:Filter Paper, 597 Optima Qualitative, Grade: Whatman, Standard grade for determining fat content or removal of carbon dioxide and turbidity from beverages, Available in sheets, circles and pre-pleated formats, Medium fast filtration rate, size: 240 mm
Description:
For general analytical separations. Smooth, white, normally-hard surface. Flow Rate: 130mm/30 minutes (water). Paper Thickness: 0.18mm. Roll Size: 4cmx100m.
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