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Qualitative Filter Paper 9cm Lab Filter Paper for Chemistry, Standard Qualitative Grade 1-Medium Flow 90mm(100 Discs)
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Qualitative Filter Paper 9cm Lab Filter Paper for Features
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GRADE 1 : 9cm - Equivalent to Whatman qualitative grade 1, standard lab filter paper (90mm)
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LAB FILTER - Routinely used in lab to determine fat content, extract solids and clarify liquids
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CHEMISTRY CLASS - Filter paper can teach basic qualitative separations and paper chromatography
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AIR FILTRATION - Collect medium particles for pollution monitoring
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MEDIUM RETENTION / MEDIUM FLOW - Retains medium crystalline particles (10~15 micron)
About Qualitative Filter Paper 9cm Lab Filter Paper For
GRADE 1 STANDARD Qualitative Filter Paper Equivalent to Whatman grade 1, this laboratory filter paper is commonly used in labs where you need to separate a solid or precipitate from the filtrate. Made from high alpha-cellulose cotton, this standard lab filter is not intended for ashing. APPLICATIONS science : Routine qualitative analytical separations and liquid clarification in labs food : Solid foodstuffs separation and liquid extraction, fat content determination beverage : Analysis and filtration of dense liquids like fruit pulps, musts, syrups, oil or plant extracts agriculture : Soil analysis and seed testing environment : Medium particles collection for pollution monitoring (stain intensity) education : Basic qualitative separations teaching and paper chromatography MEDIUM RETENTION Retains medium-fine crystalline precipitates like: Sulfates (Pb, coarse form of Ba and Ca) Carbonates (Ba, Ca) Phosphates (Al, Pb, Struvite) Chromates (Fe, As, Pb) Ca Oxalate (hot), Pb Oxide paper : pure cotton cellulose flow : medium retention : 10~15 μm (medium) speed : 30~35 s (10ml DIN 53137) size : ⌀ 90 mm thickness : 150 μm weight : 86 g/m² ash : 0.1% qty : 100 discs PLAIN-DISCS These Flat Discs are suitable for gravity and Buchner low suction vacuum filtration. The same affordable filters are also available funnel-ready as ST001-90q (folding) or ST001-90v (pleating). EQUIVALENCE & SIZE See the cross-reference table and size diagrams in the photos to choose the appropriate reference and diameter of your circles.
