Buscaste: Papeles de filtros
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.
Whatman™ Grade 113 Qualitative Filter Papers
Supplier: Cytiva
Ultra high loading capacity with a particle retention well suited for use with coarse or gelatinous precipitates.
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Whatman™ Grade 597 and 597 ¹/₂ Qualitative Filter Papers
Supplier: Cytiva
Savings in time required to quadrant-fold circles to fit conical filter funnels in repetitive or multiple analyses.
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Whatman™ Grade 226 Qualitative Filter Papers, Whatman products (Cytiva)
Supplier: Cytiva
A general qualitative filter with creped surface. Widely used in industrial or student laboratories for routine filtration.
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Whatman™ Grade 202 Qualitative Filter Papers, Whatman products (Cytiva)
Supplier: Cytiva
A general qualitative filter with creped surface. Faster than grade 201 and retains large crystalline coarse particles. Widely used in industrial laboratories and students laboratories for routine filtration.
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Whatman™ Quantitative Filter Papers, Ashless Grades (Ash 0.01%), Grade 589/2, Whatman Products (Cytiva)
Supplier: Cytiva
Whatman Grade 589/2 filters from Cytiva are used in routine quantitative analyses, including analysis of aqueous suspension in paper, flour analysis, and sand content quantification.
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Medium Grade, 15 μm
Supplier: UNITED SCIENTIFIC SUPPLIES
The most widely used qualitative filter paper for routine applications.
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Qualitative Filter Paper, Grade 609, Ahlstrom
Supplier: AHLSTROM MUNKSJO FILTRATION LLC.
Ahlstrom Grade 609 is an evolution of Ahlstrom 613 for use in the beer industry.
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Whatman™ Quantitative Filter Papers, Ashless Grades (Ash 0.007%), Grade 40
Supplier: Cytiva
Whatman Grade 40 high-purity filters from Cytiva's business are general-purpose papers for quantitative analysis. Grade 40 filters are suitable for a variety of analytical filtration applications.
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Whatman™ Quantitative Filter Papers, Ashless Grades (ash 0.007%), Grade 42
Supplier: Cytiva
Cytiva's Whatman Grade 42 quantitative papers have the finest retention of all Whatman ashless filter paper grades. Grade 42 is designed for gravimetric analysis and sample preparation for instrumental analysis.
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Whatman™ Quantitative Filter Papers, Ashless Grades (ash 0.01%), Grade 589/3, Whatman products (Cytiva)
Supplier: Cytiva
Whatman Grade 589/3 ashless filter paper from Cytiva is particularly useful in capturing very fine particulate samples such as insoluble molecules in fats or oils or supporting ash free dry mass.
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Whatman™ Quantitative Filter Papers, Ashless Grades (Ash 0.007%), Grade 44
Supplier: Cytiva
Cytiva's Whatman Grade 44 quantitative paper is a thin version of Grade 42 ashless paper. The thinness reduces the overall ash content, making Grade 44 well suited for analyses relying on ash-free dry weight.
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Whatman™ Grade 2 Qualitative Filter Papers
Supplier: Cytiva
These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.
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Whatman™ No. 1 Filter Paper, Whatman products (Cytiva)
Supplier: Cytiva
High Quality Filter Paper.
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Qualitative Filter Paper, Whatman products (Cytiva)
Supplier: Cytiva
Grade 93 qualitative filter paper.
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VWR® Qualitative Filter Paper, Grade 413
Supplier: VWR International
Suitable for filtration of aluminum phosphate, barium carbonate, lead chromate, and more.
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Standard Grade Qualitative Filter Papers
Supplier: VWR International
Qualitative Filter Paper is available in three standard grades.
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VWR® Quantitative Filter Paper, Grade 474
Supplier: VWR International
Uses include filtration of aluminum phosphate, zinc ammonium phosphate, and silver chromate.
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VWR® Qualitative Crepe Fluted Circles, Folded, Grade 315
Supplier: VWR International
Crepe fluted circles are ideal for gelatinous and coarse precipitates.
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VWR® Quantitative Filter Paper, Grade 494
Supplier: VWR International
Useful for very fine precipitates such as barium and lead sulfates, stannic and nickel sulfides, and calcium hydroxide.
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VWR® Qualitative Crepe Filter Paper, Grade 417
Supplier: VWR International
Good for rapid filtrations where fine particle retention is not required.
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VWR® Qualitative Filter Paper, Grade 410
Supplier: VWR International
Grade 410 filter paper is useful in analytical operations involving filtration of cuprous oxide, lead sulfate, barium sulfate, manganese carbonate, and more.
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VWR® Quantitative Filter Paper, Grade 454
Supplier: VWR International
Use for retention of zirconium hydroxide, aluminum hydroxide, cobalt sulfide, and other coarse or gelatinous precipitates.
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VWR® Qualitative Fluted Circles, Folded, Grade 313
Supplier: VWR International
Used for drugs, pharmaceuticals, liquors, tinctures, chromatography, and protein-free filtrations in the clinical laboratory.
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VWR® Qualitative Crepe Filter Paper, Grade 415
Supplier: VWR International
Good for coarse precipitates such as aluminum hydroxide, cobalt carbonate, mercury iodide, magnesium hydroxide, and more.
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Whatman™ Grade 1574 and 1574 ½ Qualitative Filter Papers, Wet Strengthened Grades, Whatman products (Cytiva)
Supplier: Cytiva
Medium fast cellulose filter paper with high wet strength. This paper has the same chemical resistance characteristics as Grade 1573.
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Whatman™ Grade 602 h Qualitative Filter Papers, Whatman products (Cytiva)
Supplier: Cytiva
A standard grade filter esed in sample preparation, e.g., in the beverage industry for residual sugar determination, acidic spectra, refractometric analysis, and HPLC.
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Whatman™ Grade 595 ½ Qualitative Filter Papers, Whatman products (Cytiva)
Supplier: Cytiva
A prepleated filter used for many routine analytical applications in different industries (e.g., particle separation from food extracts or filtration of solids from digested environmental samples, e.g., for ICP/AAS analysis).
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Whatman™ Grade 201 Qualitative Filter Papers, Whatman products (Cytiva)
Supplier: Cytiva
A general qualitative filter for less critical routine analysis. Widely used in industrial laboratories and students laboratories for routine filtration.
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Proveedor: VWR International
Proveedor: VWR International
Proveedor: VWR International
Proveedor: VWR International
Proveedor: VWR International