Commonly employed in multi-step synthesis and reaction processes, the Filter Circles, Qualitative, Grade 50, Ø 125 Mm are designed for precise filtration tasks. These circles, manufactured by Whatman, have a slow filtration rate, ensuring thorough separation of particles down to 2.7 micrometers in liquids. With a basis weight of 97 grams per square meter, they offer a high level of particle retention while maintaining a thinness of 115 micrometers. Their hardened and highly glazed surface prevents loose surface fibers, making them suitable for both qualitative and quantitative filtrations requiring vacuum assistance on Büchner or 3-piece filter funnels.

• Category: Quantitative Filter Papers
• Basis weight: 97 g / m2
• Filtration speed Herzberg: 2685 s
• UNSPSC 13.5: 41104929
• Particle retention in liquid: 2.7 µm
• Filtration time [s]: 144
• Ash content: 0.015 %
• Type: Sorte 50
• Description: slow
• Diameter [mm]: 125
• Filter type: filter circle
• Brand: Whatman
• Typical thickness: 115 µm