Description
Round filter MN 640 de, 7 cm is a laboratory round filter paper intended for routine filtration work in analytical, preparative and quality-control settings. With a diameter of 7 cm it fits standard funnels and filtration assemblies used for clarifying solutions, collecting precipitates or preparing samples. Each pack contains 100 pieces, offering a practical quantity for everyday laboratory consumption. The MN 640 de grade from manufacturer Macherey-Nagel delivers consistent performance for general qualitative filtration tasks across chemistry and life-science laboratories. The filters are supplied non-sterile and are therefore suited to non-aseptic applications. Net weight per pack is 0,05 kg, with compact outer packaging that simplifies storage and bench handling. Originating from Germany, these round filters support reliable liquid–solid separations and help maintain efficient sample-processing workflows wherever standardised 7 cm MN 640 de filter papers are required.
This article is part of Filter paper, in Filtration.
Key features
- Pack size: 100 pc(s)
- Product type: Round filter MN 640 de
- Diameter: 7 cm
- EAN: 4046681042508
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Questions about Round filter MN 640 de, 7 cm
What is this article?
Round filter MN 640 de, 7 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.