Description
Round filter MN 640 de is a laboratory round filter paper disc with a diameter of 5,5 cm, intended for routine solid-liquid separations in analytical, preparative and quality-control workflows. Supplied in convenient packs of 100 pieces, these filters support gravity and low-pressure filtration of aqueous and organic samples in chemistry, life-science and industrial laboratories. The MN 640 de grade from manufacturer Macherey-Nagel delivers consistent filtration behaviour for everyday sample clarification, precipitate collection and general laboratory filtration tasks. The 5,5 cm diameter matches common funnel sizes and filtration assemblies, allowing straightforward integration into standard bench protocols. Each pack of 100 individual discs offers practical stock management for high-throughput or multi-user environments while keeping handling simple. With a net weight of 0,03 kg per pack, the product is easy to store and transport. These round filters help laboratories maintain reliable, reproducible filtration steps without unnecessary complexity, making them a practical choice for daily sample preparation and process support across diverse scientific applications.
This article is part of Filter paper, in Filtration.
Key features
- Pack size: 100 pc(s)
- Product type: Round filter paper
- Grade: MN 640 de
- Diameter: 5,5 cm
- EAN: 4046681042522
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Questions about Round filter MN 640 de, 5.5 cm
What is this article?
Round filter MN 640 de, 5.5 cm is the article on this page. Luminix Health distributes Macherey-Nagel 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.