Description
Qualitative filter paper, folded, 185 mm is a laboratory filtration medium for routine qualitative separations in research, quality control, and teaching. With a basis weight of 80 g/m² and a slow filtration rate, these pre-folded circles support controlled gravity flow when clarifying liquids, isolating precipitates, or preparing samples for further work. The 185 mm diameter fits larger laboratory funnels, so the paper forms a stable cone with little adjustment. Supplied in packs of 100 pieces from manufacturer filtraTECH, the format suits multi-user benches that need a consistent qualitative grade ready to hand. As a qualitative rather than ashless quantitative grade, it is appropriate where visual assessment or subsequent processing matters more than low-ash residue determination. Slow filtration favours steadier drip behaviour compared with rapid grades. The folded construction shortens set-up at the funnel and promotes even contact with the glassware wall. These filters integrate into standard wet-chemistry protocols with aqueous solutions and many routine laboratory reagents under ordinary working conditions.
This article is part of Filter paper, in Filtration.
Key features
- Pack size: 100 pc(s)
- Product type: Qualitative filter paper
- Form: Folded
- Diameter: 185 mm
- Basis weight: 80 g/m²
- Filtration speed: Slow
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Questions about Folded qualitative filter paper, 185 mm
What is this article?
Folded qualitative filter paper, 185 mm is the article on this page. Luminix Health distributes filtraTECH for laboratory use. It sits in Filter paper, inside Filtration, in Lab consumables.
Filter paper is a cellulose sheet of a stated retention and speed. Qualitative paper clarifies. Quantitative, ashless paper is for a precipitate that will be weighed or ashed, because the paper itself leaves almost no ash. The diameter has to match the funnel.
Filtration holds back what is larger than the pores and lets the rest through. Paper is the ordinary laboratory filter. A membrane has a stated pore size and a polymer that must survive the solvent. A syringe filter is that membrane in a housing on a syringe. Glass fibre takes a higher dirt load. Ultrafiltration holds back macromolecules and passes salts. The pore size, the chemical compatibility and the volume are the three choices. Laboratory apparatus around filtration is indexed under ISO laboratory apparatus.
Which category should I open next?
The category is Filtration. The sub-category is Filter paper. The catalogue is Lab consumables.
Shelves beside this one are Sintered glass filter plates & discs, Syringe filters, Filter cartridges & capsules, Membrane filters, Glass & quartz fibre filters, Bottle-top & vacuum filtration units, Ultrafiltration & concentrators, Filtration accessories, Extraction thimbles and Dialysis tubing & devices.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.