Description
Extraction thimble MN 645, 23x100 mm is a laboratory extraction thimble with an inner diameter of 23 mm and a height of 100 mm. Belonging to the MN 645 product type, it provides a clearly defined format for retaining solid samples during solvent extraction in analytical chemistry and related laboratory applications. Size is specified as inner diameter × height to aid correct matching with extraction apparatus. Available as a pack of 25 pieces from manufacturer Macherey-Nagel, these thimbles support efficient sample preparation when several extractions run in parallel. The pack quantity is convenient for routine replenishment in research, quality-control and teaching environments. Net and gross weight are each 0,17 kg per pack, simplifying handling and inventory. MN 645 extraction thimbles in the 23x100 mm format offer a practical consumable for solid–liquid extraction workflows that require consistent thimble geometry and reliable pack supply, based solely on the stated dimensions and packaging data.
This article is part of Extraction thimbles, in Filtration.
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Questions about Extraction thimbles MN 645, 23x100 mm
What is this article?
Extraction thimbles MN 645, 23x100 mm is the article on this page. Luminix Health distributes Macherey-Nagel for laboratory use. It sits in Extraction thimbles, inside Filtration, in Lab consumables.
An extraction thimble holds a solid inside a Soxhlet or a similar extractor. Cellulose and glass fibre are the two materials. The internal diameter and the height have to match the extractor chamber. A thimble that is too tall blocks the siphon.
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 Extraction thimbles. The catalogue is Lab consumables.
Shelves beside this one are Filter paper, 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 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.
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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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

