Whatman Grade 54 Fast Filter Paper, 150 Mm Circle, 100 Pack

GRADE 4 Q QUADRANT Qualitative Filter PaperEquivalent to Whatman grade 4 FF, this very fast laboratory filter paper is used for coarse filtration when 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 clean-up of insoluble liquids such as biological fluids or organic extracts in labs food : Determination Sodium Chloride in foodstuffs beverage : Filtration of musts in wine metalurgy : Determination of silicon impurities in pig iron and steel COARSE RETENTIONRetains coarse particles and gelatinous precipitates like: Metal hydroxides (Al, Cr, Fe, Mg) , Be Oxide qty : 50 discsPRE-FOLDEDThese Quadrant Folded Filters saves folding time when filtration is done repetitively. Suitable for gravity filtration in standard funnels, not vacuum. GRADE 4 Q : 15cm - Equivalent to Whatman qualitative grade 4 FF, quadrant folded filter paper (150mm) PREFOLDED - No more folding! These pre-folded Quadrant filters are ready for the funnel WINE MAKING - Filtration of musts