Description
Specifications Table
Product Name – Whatman Grade 541 Cellulose Filter Paper
Quantity/Pack Size – 4.25CM (Pack of 100), 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), 27CM (Pack of 100), 32CM (Pack of 100), 40CM (Pack of 100), 46x57CM (Pack of 100)
Form – Circular sheets
Grade – 541 (Medium retention, 20-25 ?m)
Application – General lab filtration, qualitative analysis, sample preparation
Product Overview
Whatman Grade 541 cellulose filter paper is a trusted choice for laboratories requiring consistent filtration performance. Engineered with high-purity cellulose fibers, this grade offers medium particle retention (20-25 ?m), making it ideal for applications where both clarity and flow rate are critical. The uniform texture ensures even particle distribution, while the acid-washed treatment minimizes extractables, reducing interference in sensitive analyses. Its balanced retention and flow characteristics make it versatile for a wide range of filtration tasks, from routine sample preparation to qualitative analytical procedures. The paper?s inherent wet strength and chemical compatibility with most organic and inorganic solvents further enhance its reliability in diverse lab environments. Whether used in gravity or vacuum filtration setups, Grade 541 delivers reproducible results with minimal clogging, ensuring efficient workflow. The absence of binders or additives guarantees purity, making it suitable for applications where contamination control is paramount. Available in multiple diameters to fit standard filtration apparatus, this filter paper combines performance with convenience for seamless integration into existing lab protocols.
FAQs
1. What is the particle retention range for Whatman Grade 541 filter paper?
The particle retention range is 20-25 ?m, classifying it as a medium-retention filter paper suitable for general lab filtration.
2. Can this filter paper be used with organic solvents?
Yes, Whatman Grade 541 is compatible with most organic and inorganic solvents, making it versatile for various filtration applications.
3. How does the flow rate compare to other Whatman grades?
Grade 541 offers a balanced flow rate, faster than high-retention grades like 42 but slower than coarse grades like 1, ideal for moderate filtration needs.
4. Is this filter paper pre-treated or acid-washed?
Yes, it undergoes acid washing to reduce extractables, ensuring minimal interference in analytical procedures.
5. What diameters are available for this filter paper?
It is available in diameters ranging from 4.25 cm to 46×57 cm, covering standard lab filtration requirements.
