Description
Specifications Table
Product Name – Whatman Grade 598 FF Cellulose Filter Paper
Quantity/Pack Size – 125MM (Pack of 50) – 185MM (Pack of 50) – 240MM (Pack of 50) – 500MM (Pack of 50)
Form – Circular sheets
Grade – 598 FF (Fast Flow, Low Ash)
Application – General filtration, solvent clarification, particle retention
Product Overview
Whatman Grade 598 FF is a high-performance cellulose filter paper engineered for fast flow rates and minimal ash content, making it a reliable choice for demanding laboratory applications. Constructed from 100% pure cellulose fibers, this grade ensures consistent filtration efficiency with a nominal particle retention of 4-7 ?m, balancing speed and clarity. The fast flow characteristic reduces processing time without compromising filtration quality, while the low ash content (≤0.06%) minimizes residue interference in sensitive analyses. Its uniform thickness and smooth surface prevent fiber shedding, ensuring clean filtrates even under high-pressure conditions. The paper’s chemical compatibility with most organic solvents and aqueous solutions expands its versatility across diverse protocols. Pre-cut circular sheets eliminate preparation time, and the grade’s lot-to-lot consistency guarantees reproducible results. Whether used for routine sample prep or critical separations, Whatman 598 FF delivers a cost-effective combination of durability, purity, and performance, backed by Whatman’s legacy of filtration excellence.
FAQs
1. What is the particle retention range for Whatman Grade 598 FF filter paper?
The nominal particle retention for this grade is 4-7 ?m, offering a balance between flow rate and filtration efficiency.
2. Can this filter paper be used with organic solvents like acetone or ethanol?
Yes, Whatman Grade 598 FF is compatible with most organic solvents, including acetone, ethanol, and methanol, as well as aqueous solutions.
3. How does the ash content of 598 FF compare to standard filter papers?
With an ash content of ?0.06%, this grade has significantly lower residual ash than standard filter papers, reducing potential contamination in sensitive applications.
4. What is the typical flow rate for this filter paper under standard conditions?
The fast flow rate is approximately 180-220 seconds for 100ml of water under 10cm pressure, though actual rates may vary based on sample viscosity.
5. Are these sheets pre-sterilized or do they require autoclaving before use?
Whatman Grade 598 FF is not pre-sterilized. If sterility is required, the sheets can be autoclaved at 121?C for 15 minutes without affecting performance.
