You searched for: Filter Papers
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.
Qualitative filter papers, technical, smooth, grade 3 m/N
Supplier: Sartorius
These smooth filter papers are made of refined pulp and linters with more than 95% alpha-cellulose content. The ash content of these filter papers is between 0,1 and 0,15%. They are used for routine analyses like clarification, determination of substances, but also as discs with a centre hole for technical applications. Grades with a wet burst resistance >30 kPa are referred to as wet-strengthened and are therefore suitable for pressure or vacuum filtration.
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Grade 520 a filter papers for technical use, Whatman™
Supplier: Whatman products (Cytiva)
A thin paper with great wet strength and a very high flow rate. Frequently used in technical applications such as the filtration of viscous liquids and emulsions (e.g., sweetened juices, spirits and syrups, resin solutions, oils, or plant extracts).
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Qualitative filter papers, standard grades, grade 591, Whatman™
Supplier: Whatman products (Cytiva)
These cellulose filters are used in qualitative analytical techniques to determine and identify materials.
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Qualitative filter papers, Grade 598 ½, Whatman™
Supplier: Whatman products (Cytiva)
A thick prepleated filter paper with high loading capacity. Combines medium retention with medium-fast to quick filtration speed.
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Quantitative filter papers, pyramid folded, Whatman™
Supplier: Whatman products (Cytiva)
Easily fits into conical funnels.
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Grade 2294 filter papers for technical use, Whatman™
Supplier: Whatman products (Cytiva)
A very thick filter card with high wet strength. Offers very high flow rate and retains medium to coarse particles.
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Grade 602 h qualitative filter papers, Whatman™
Supplier: Whatman products (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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Qualitative filter papers, grade 201, Whatman™
Supplier: Whatman products (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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Quantitative filter papers, hardened low ash grades, grade 52, Whatman™
Supplier: Whatman products (Cytiva)
Cytiva's Whatman Grade 52 is a general-purpose filter paper for quantitative analysis in Büchner funnel and other vacuum filtrations. The acid-hardened surface and low ash content enable efficient precipitate recovery.
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Qualitative filter papers, Grade 226, Whatman™
Supplier: Whatman products (Cytiva)
A general qualitative filter with creped surface. Widely used in industrial or student laboratories for routine filtration.
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Grade 2589 D filter papers for technical use, Whatman™
Supplier: Whatman products (Cytiva)
A very thick filter with high wet strength. Offers medium to slow flow rate and retains very fine precipitates.
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Qualitative filter papers, wet-strengthened
Supplier: Sartorius
These qualitative filter papers are essentially used for analytical purposes and routine analyses, whenever no gravimetric analyses are required. They are wet-strengthened and can be used for pressure and vacuum filtration. They are made of refined pulp and linters with an >95% alpha-cellulose content, are very pure with an ash content <0,1%.
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Qualitative filter papers, grade 230, Whatman™
Supplier: Whatman products (Cytiva)
A general qualitative filter with creped surface. Widely used in industrial laboratories and students laboratories for routine filtration.
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Grade 8 ruled filter papers, Whatman™
Supplier: Whatman products (Cytiva)
These white cotton linter cellulose filters are ideal for routine investigations of foreign substances in a variety of sample types.
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Grade 3 qualitative filter papers, Whatman™
Supplier: Whatman products (Cytiva)
A standard grade filter used in qualitative analytical techniques to determine and identify materials. For use in büchner funnels.
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Quantitative filter papers, hardened low ash grades, grade 54, Whatman™
Supplier: Whatman products (Cytiva)
Whatman Grade 54 hardened low ash quantitative filter paper for Büchner funnel and Hirsch funnel filtration enables fast vacuum suction filtration for recrystallization applications.
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Application specific filter papers, grade 3459, Whatman™
Supplier: Whatman products (Cytiva)
Creped cellulose filter papers with good retentivity at a relatively high filtration speed. They are used for the clarifying filtration of dried beet pulp extracts or beet juice after the addition of lead acetate for subsequent polarimetric sugar determination. They are specifically designed for the Venema unit (lead acetate method).
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Quantitative filter papers, ashless grades, grade 589/2 and 589/2 ½, Whatman™
Supplier: Whatman products (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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Whatman™ Grade 5V Qualitative Filter Papers, Fluted
Supplier: Whatman products (Cytiva)
Whatman Grade 5V fine particle filter retains particles as small as 2,5 µm for qualitative analysis
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Grade 0858 seed test paper, Whatman™
Supplier: Whatman products (Cytiva)
Grained, with medium fast flow rate and medium retention. A universal filter paper, used for the filtration of extracts, oils, beer, syrups etc.; also applied in filter presses or for the aspiration of liquids.
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Phase separating paper, grade 1PS
Supplier: Whatman products (Cytiva)
1PS phase-separating paper is a hydrophobic filter for routine solvent extraction. Within seconds it retains aqueous phases, while solvent phases flow through.
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Grade 520 bII filter papers for technical use, Whatman™
Supplier: Whatman products (Cytiva)
A thick paper with high wet strength offering a very high flow rate.
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Qualitative filter papers, grade 802, Whatman™
Supplier: Whatman products (Cytiva)
A prepleated filter for use with a conical filter funnel, offers fast filtration and high loading capacity for analysis involving coarse particles or gelatinous precipitates.
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Qualitative filter papers, standard grades, grade 597 Optima, Whatman™
Supplier: Whatman products (Cytiva)
Standard Whatman grade filter paper for a variety of routine applications in food and beverage industries. Well-suited for determination of fat content in food or removal of carbon dioxide and turbidity from beverages such as beer.
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Ashless filter aids, Whatman™
Supplier: Whatman products (Cytiva)
Ashless filter aids enhance filtration speed by coagulating precipitates or suspensions to form a thick retentive ‘prefilter’ layer on top of normal filter paper.
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Quantitative filter papers, hardened ashless grades, grade 542, Whatman™
Supplier: Whatman products (Cytiva)
Cytiva's Whatman Grade 542 filters are acid hardened to allow high retention of fine precipitates in applications such as metal determinations and hydroxide collection.
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Grade 113 qualitative filter papers, Whatman™
Supplier: Whatman products (Cytiva)
Ultra high loading capacity with a particle retention well suited for use with coarse or gelatinous precipitates.
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Grade 520 a ½ qualitative filter papers, Whatman™
Supplier: Whatman products (Cytiva)
A thin paper with great wet strength and a very high flow rate. Frequently used in technical applications such as the filtration of viscous liquids and emulsions (e.g., sweetened juices, spirits and syrups, resin solutions, oils, or plant extracts).
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Grade 595 ½ qualitative filter papers, Whatman™
Supplier: Whatman products (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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Quantitative filter papers, ashless grades, grade 44, Whatman™
Supplier: Whatman products (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.