Qualitative Filter Paper 11cm Lab Filter Paper for Chemistry, Standard Qualitative Grade 1-Medium Flow 110mm(100 Discs)

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.APPLICATIONSscience : Routine qualitative analytical separations and liquid clarification in labsfood : Solid foodstuffs separation and liquid extraction, fat content determinationbeverage : Analysis and filtration of dense liquids like fruit pulps, musts, syrups, oil or plant extractsagriculture : Soil analysis and seed testingenvironment : Medium particles collection for pollution monitoring (stain intensity)education : Basic qualitative separations teaching and paper chromatographyMEDIUM RETENTIONRetains 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 Oxidepaper : pure cotton celluloseflow : mediumretention : 10~15 μm (medium)speed : 30~35 s (10ml DIN 53137)size : ⌀ 110 mmthickness : 150 μmweight : 86 g/m²ash : 0.1%qty : 100 discsPLAIN-DISCSThese Flat Discs are suitable for gravity and Buchner low suction vacuum filtration.The same affordable filters are also available funnel-ready as ST001-110q (folding) or ST001-110v (pleating).EQUIVALENCE & SIZESee the cross-reference table and size diagrams in the photos to choose the appropriate reference and diameter of your circles.

• GRADE 1 : 11cm - Equivalent to Whatman qualitative grade 1, standard lab filter paper (110mm)
• LAB FILTER - Routinely used in lab to determine fat content, extract solids and clarify liquids
• CHEMISTRY CLASS - Filter paper can teach basic qualitative separations and paper chromatography
• AIR FILTRATION - Collect medium particles for pollution monitoring
• MEDIUM RETENTION / MEDIUM FLOW - Retains medium crystalline particles (10~15 micron)