Macherey-Nagel MN 616 md filter paper circle, qualitative, 4–7 µm (Ø 55–500 mm), 500 mm
€156.80
% Manufacturer's RRP: €196.00 20% below manufacturer's RRP
- Qualitative filter paper circles (flat)
- Grade MN 616 md: Medium-density & fine
- Filtration time: approx. 55 s (medium-speed to slow)
- Retention capacity: 4–7 µm
- Ideal for Büchner funnels or fine precipitates
- Package contents: 100 pieces
- Available in diameters from 55 mm to 500 mm
Product information "Macherey-Nagel MN 616 md filter paper circle, qualitative, 4–7 µm (Ø 55–500 mm), 500 mm"
Precision for fine particles: Macherey-Nagel MN 616 md filter paper circles
The Macherey-Nagel MN 616 md filter paper circles are qualitative filter papers designed to meet demanding retention requirements. The abbreviation ‘md’ stands for medium density. These papers have a denser structure than the standard MN 615 grade, thereby bridging the gap between fast routine filters and very slow filters for the finest precipitates.
Properties: Medium-fast to slow
If you find that your filtrate remains cloudy when using standard papers, the MN 616 md grade is the solution:
- Filtration rate: With a run-through time of approx. 55 seconds (according to DIN 53137), this paper filters significantly more slowly than standard filters (approx. 22 s). This time is necessary to ensure that even smaller particles are reliably trapped in the fibre network.
- Retention capacity: The range is 4 to 7 µm. This ensures that fine precipitates such as barium sulphate, chromium oxide, tin dioxide or sugar solutions are reliably clarified.
- Surface: The filters are smooth. This is ideal if you wish to recover (scrape off) the precipitate from the filter or process it further.
Use as filter paper circles
These filters are supplied flat. They are therefore ideal for:
- Vacuum filtration: Placed in Büchner funnels (suction filters) or on glass frits to rapidly clarify solutions using negative pressure.
- Gravity filtration: For use in standard conical funnels, the filter must be manually folded (quarter-fold) before use.
Quality and purity
Like all qualitative filters from Macherey-Nagel, the MN 616 md grade consists of refined cellulose with an extremely low ash content of approx. 0.1 % (alpha-cellulose content approx. 95 %). They have sufficient wet strength for most routine applications and are chemically stable against standard solvents.
Technical data
- Grade: MN 616 md (filter paper circle)
- Type: Qualitative filter paper
- Filtration rate: Medium-fast to slow (approx. 55 s)
- Surface: Smooth
- Basis weight: 85 g/m²
- Thickness: 0.17 mm
- Retention range: 4–7 µm (fine particles)
- Ash content: approx. 0.1 %
- Material: Cellulose
- Design: Flat (round)
- Packaging unit: 100 pieces per pack
Scope of delivery
- 1 x pack of 100 Macherey-Nagel filter paper circles (grade MN 616 md)
(The diameter corresponds to the variant you selected above.)
Individual requirements & accessories
For optimal use of these filter paper circles, we recommend:
- Büchner funnels (suction filters): Made of porcelain or plastic, ideal for rapid vacuum filtration using these flat filters.
- Glass funnels: If you are filtering by gravity, you will need to fold these filters by hand (or opt directly for folded filter papers).
- Suction flasks & sealing sleeves: For setting up a vacuum filtration apparatus.
Do you need help choosing the right size for your Büchner funnel? We’d be happy to advise you. Please contact our procurement service.
| Diameter: | 500 mm |
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