LabExact
Grade CFP41 Cellulose Filter Paper, Qualitative, 20µm, 55mm, Fast Flow, 100/Pk SKU: LE-CFP41-055

Featuring acid-washed cellulose fiber technology delivering exceptionally fast flow rates and loose retention characteristics for rapid separation of challenging gelatinous precipitates. The 20 µm nominal retention provides optimal particle capture while maintaining accelerated filtration speeds essential for preliminary separations and multi-stage filtration processes. Ultra-low ash content below 0.01% eliminates interference in downstream analytical procedures, making this medium ideal for applications requiring minimal contamination levels.

Key Cellulose Membrane Characteristics

Refined pulp and alpha linter construction with acid washing delivers superior purity for analytical applications
Exceptionally low ash content <0.01% minimizes residual contamination in gravimetric analysis procedures
20 µm nominal retention achieves 98% efficiency for particulate separation in liquid filtration
Very fast flow rates and loose retention characteristics optimize processing speed for gelatinous precipitates
Standard 0.220mm thickness provides consistent handling characteristics and uniform filtration performance

Key Construction Characteristics

Cellulose fiber matrix entraps particulate within random fiber network throughout media depth
Hydrophilic surface chemistry ensures rapid wetting and immediate filtration initiation with aqueous solutions
55mm diameter accommodates standard laboratory filter holders and funnel configurations
Nonsterile format reduces costs while maintaining analytical grade performance for routine laboratory procedures
Qualitative grade classification provides reliable performance for preparative and preliminary separation applications

LE-CFP41-055 filters excel in first-stage separations where rapid throughput takes precedence over fine particle retention, accelerating your laboratory workflows during preliminary sample preparation. The fastest flow rate among qualitative cellulose media makes this grade very commonly used as initial media in multi-stage filtration processes, ideally suited for organic extractions and biological fluid separations. Outstanding chemical compatibility with most laboratory solvents maximizes your analytical flexibility when processing diverse sample matrices requiring rapid clarification before instrumental analysis or further purification steps.