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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:
Wet Strengthened Grade 93 circles, 125 mm, 100/pk This filter paper is intermediate in speed and retention between Grades 1 and 4. Available in a dispenser pack,
Description:
Qualitative Folded Filter Paper, Standard Grade, Grade 4, pyramid, Dimension: 110 mm, cellulose filters are used in qualitative analytical techniques to determine and identify materials, Prepleated qualitative filters are also available, 1000/pk
Description:
Retention of very fine crystalline precipitates. The thinnest of all Whatman filter Paper. Slow flow rate. Hardened and highly glazed surface.
Description:
27.0cm 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, Shape: Circle, Thin, grade 50, for Quantitative Analysis, world-renowned as the standard for laboratory filtration and are associated with quality, reliability and customer service, Manufactured from high-quality cotton linter, alpha cellulose contact of 98%, Size: 6.35cm
Description:
Quantitative Filter Papers, hardened ashless grades, Grade 542, These filters are acid-hardened to give high wet strength and chemical resistance, The tough surface makes these filters suitable for a wide range of critical filtration procedures, Diameter:24cm, Pack100
Description:
Thin filter paper, medium-fast with medium to fine particle retention. Used for many routine analytical applications in different industries
Description:
Reeve Angel Brand Filter Papers Grade 202, 33.0 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:
This is the most retentive of the Reeve Angel filters with a slow flow rate and fine particle retention. Applications include fine particle isolation, water analysis, foods and beverages, solvent filtration, colognes and perfumes, and qualitative analysis.
Description:
Qualitative Filter Papers. 30 um. Ultra high loading capacity with a particle retention making it ideal for use with coarse or gelatinous precipitates. Fastest flow rate of the qualitative grades. Creped surface. Thickest Filter Paper in the Whatman range.
Description:Filter paper, Hardened, low-ash, suitable for routine gravimetric analysis. Grade 392 has a medium filtering speed for standard tasks. Ash < 0.01% 270mm, pack 100
Description:
Wet Strengthened Grade 91 sheets, 61 x 61 cm, 500/pk (Subdivided into 100) A general purpose creped filter for less critical routine analysis. Widely used to assay sucrose in cane sugar.
Description:
Wet Strengthened Grade 93 sheets, 61 x 61 cm, 500/pk This filter paper is intermediate in speed and retention between Grades 1 and 4. Available in a dispenser pack,
Description:
Folded Prepleated Grade 520 a 1/2 folded filters, 240 mm, 100/pk A thin qualitative filter paper with great wet strength and a very high flow rate. Used in the filtration of viscous liquids and emulsions
Description:
Quantitative Filter Paper Ashless (Ash 0.007%), sheet, 460x570 mm, Grade 40, for gravimetric analysis and the preparation of samples for instrumental analysis, pure filters suitable for a wide range of critical analytical filtration procedures, Pack100
Description:Filter paper, highly glazed Grade 40, supports vacuum filtration in Bchner funnels or Hirsch funnels and enables strong retention of very fine crystalline precipitates, Acid-treated for high wet-strength and chemical resistance, High purity and low ash content, size: 125mm
Description:
The fastest ashless filter paper, recommended for analytical procedures involving coarse particles or gelatinous precipitates (e.g., iron or aluminum hydroxides).
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