Description
Specifications Table
Product Name – Whatman Grade 5 Cellulose Filter Paper
Quantity/Pack Size – 4.7CM (Pack of 100), 5.5CM (Pack of 100), 7CM (Pack of 100), 9CM (Pack of 100), 11CM (Pack of 100), 12.5CM (Pack of 100), 15CM (Pack of 100), 18.5CM (Pack of 100), 24CM (Pack of 100), 32CM (Pack of 100), 2.5CM (Pack of 100)
Form – Circular sheets
Grade – 5
Application – Medium retention, general lab filtration
Product Overview
Whatman Grade 5 cellulose filter paper is a trusted choice for laboratories requiring reliable filtration with medium particle retention. Engineered from high-purity cellulose, this filter paper delivers consistent performance across a wide range of applications, ensuring clarity and precision in your results. Its balanced retention rate makes it ideal for filtering fine precipitates while maintaining a fast flow rate, reducing processing time without compromising quality. The paper’s high wet strength ensures durability during extended use, preventing tears or degradation even under demanding conditions. Chemically compatible with most solvents and reagents, it remains stable across various pH levels, making it versatile for diverse lab protocols. The uniform thickness and porosity guarantee even filtration, minimizing clogging and ensuring reproducible outcomes. Whether used in qualitative or quantitative analysis, Whatman Grade 5 provides the reliability researchers and students depend on for accurate, repeatable results. Its smooth surface further enhances particle capture efficiency, while the absence of binders or additives ensures minimal interference with sensitive assays. Designed for ease of use, these pre-cut circles fit standard filtration apparatuses, streamlining workflows and reducing setup time. Backed by Whatman’s legacy of quality, this filter paper is an essential tool for any lab prioritizing precision and efficiency.
FAQs
1. What is the particle retention range for Whatman Grade 5 filter paper?
Whatman Grade 5 filter paper has a medium retention range, typically capturing particles between 2.5 to 3 micrometers.
2. Is this filter paper compatible with organic solvents?
Yes, Whatman Grade 5 is chemically resistant to most organic solvents, making it suitable for a variety of filtration applications.
3. How does the wet strength of Grade 5 compare to other Whatman grades?
Grade 5 offers higher wet strength than Grade 1 but is less robust than Grade 4, balancing durability with filtration efficiency.
4. Can this filter paper be autoclaved for sterile applications?
Yes, Whatman Grade 5 can be autoclaved at standard conditions (121°C, 15 psi) for up to 30 minutes without significant degradation.
5. What is the typical flow rate for this filter paper?
The flow rate is moderate, approximately 70-90 seconds per 100ml of water under standard gravity filtration conditions.



