Noted for its role as an intermediate in complex synthesis pathways, the Fillter Circles, Qualitative, Grade 541, Ø 42.5 Mm filter paper from Whatman is designed for fast filtration of coarse particles and gelatinous precipitates in acid/alkali solutions during gravimetric analysis. With a basis weight of 82 g/m² and a typical thickness of 155 µm, this filter paper offers efficient particle retention between 20 to 25 µm. Its Type Sorte 541 classification ensures a low ash content of less than 0.006%, making it suitable for various applications. The filter circles exhibit a filtration speed of 34 s ensuring rapid processing times.

• Category: Quantitative Filter Papers
• Basis weight: 82 g / m2
• Filtration speed Herzberg: 34 s
• Diameter [mm]: 42.5
• Particle retention in liquid: 20 to 25 µm
• Filtration time [s]: 3
• Type: Sorte 541
• Brand: Whatman
• Ash content: < 0.006 %
• UNSPSC 13.5: 41104929
• Description: fast
• Filter type: filter circle
• Typical thickness: 155 µm