Description
Qualitative filter paper, 125 mm is a circular laboratory filtration medium designed for routine qualitative separations in chemical and analytical laboratories. Featuring a basis weight of 80 g/m² and a slow filtration rate, it is suited to gravity-driven clarification and precipitate recovery where steady, controlled flow is required. The 125 mm diameter fits larger common funnel sizes found in teaching labs, quality-control environments, and general wet-chemistry benches. Each pack contains 100 pc(s), offering a practical supply for series filtrations and day-to-day sample preparation. Slow filtration behaviour assists retention of finer particulate matter and can produce clearer filtrates under moderate particle loads. These qualitative papers from manufacturer filtraTECH slot into ordinary laboratory material inventories without specialised pretreatments. They are appropriate for clarifying solutions, isolating precipitates for visual evaluation, and preparing filtrates ahead of further qualitative examination. Consistent sheet weight helps maintain reproducible handling between successive runs. This 125 mm slow-grade option combines useful retention characteristics with manageable drainage time for standard qualitative laboratory protocols.
This article is part of Filter paper, in Filtration.
Key features
- Pack size: 100 pc(s)
- Type: Qualitative filter paper
- Diameter: 125 mm
- Basis weight: 80 g/m²
- Filtration speed: Slow
- Form: Circular sheets
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Questions about Qualitative filter paper, 125 mm
What is this article?
Qualitative filter paper, 125 mm is the article on this page. Luminix Health distributes filtraTECH for laboratory use. It sits in Filter paper, inside Filtration, in Consommables.
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 Consommables.
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.