Macherey-Nagel MN 619 folded filter paper, qualitative, slow (Ø 55–500 mm), 270 mm
€58.90
% Manufacturer's RRP: €73.40 19% below manufacturer's RRP
- Qualitative folded filter papers (sizes: 55 to 500 mm)
- Characteristic: Slow filtration (approx. 100 s)
- Retention: Very high (for the finest precipitates)
- Pre-pleated and ready for use for maximum throughput
- Smooth surface made from pure cellulose
- Package contents: 100 pieces
Product information "Macherey-Nagel MN 619 folded filter paper, qualitative, slow (Ø 55–500 mm), 270 mm"
Reliable retention of fine particles: Macherey-Nagel MN 619 folded filter papers
The MN 619 folded filter papers from Macherey-Nagel are an indispensable consumable for qualitative analytical chemistry and routine laboratory tasks. This grade is characterised by a slow filtration speed (approx. 100 seconds according to DIN 53137) and a particularly high retention capacity. This makes the paper ideally suited for reliably separating very fine precipitates and turbidity from liquids.
Why folded filter papers rather than filter paper circles?
Standard filter paper circles lie flat against the funnel wall, which reduces the effective filtration area. The MN 619 folded filter papers are pre-folded and ready for use straight from the factory.
- Larger surface area: The pleated structure greatly increases the active filtration area.
- Faster flow rate: Although the paper’s pore structure is ‘slow’ (very dense), the pleating allows a significantly higher volume flow rate to be achieved in a shorter time, as the liquid can drain away more easily.
- Time savings: The laborious and error-prone manual folding of filter paper is completely eliminated. You can insert the filters directly into the glass funnel.
Areas of application
- Qualitative analysis: Identification of substances (e.g. analytical separation procedures).
- Clarification: Removal of the finest particles from aqueous solutions, extracts or buffers.
- Chemistry & Education: Standard filter paper for the filtration of hard-to-filter, fine-grained precipitates (e.g. barium sulphate, lead sulphate).
- Industry: Sample preparation in quality control.
Technical data
- Grade: MN 619
- Format: Folded filter paper (pre-folded)
- Classification: Qualitative filter paper
- Filtration speed: Slow (approx. 100 s)
- Retention capacity: Fine (for fine precipitates)
- Material: High-purity cellulose
- Surface: Smooth
- Colour: White
Scope of delivery
-
100 x Macherey-Nagel folded filter papers MN 619 (diameter as selected)
Individual requirements & accessories
Are you looking for borosilicate glass funnels or sturdy plastic funnels to suit the large filter diameters (e.g. 500 mm)? Contact our procurement service for bespoke laboratory equipment.
| Diameter: | 270 mm |
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