Description
Specifications Table
Product Name – Whatman Grade 3 Cellulose Filter Paper
Quantity/Pack Size – 5.5CM (Pack of 100), 7.0CM (Pack of 100), 9.0CM (Pack of 100), 11.0CM (Pack of 100), 12.5CM (Pack of 100), 15.0CM (Pack of 100), 18.5CM (Pack of 100), 24.0CM (Pack of 100), 32.0CM (Pack of 100), 2.3CM (Pack of 100), 46x57CM (Pack of 100)
Form – Circular/Sheet
Grade – 3 (Medium Retention: 6-12µm)
Application – Qualitative analysis, general filtration, air monitoring
Product Overview
Whatman Grade 3 cellulose filter paper is a versatile, medium-speed filtration solution designed for precision in laboratory applications. Engineered with high-purity cellulose fibers, it offers exceptional wet strength and particle retention (6-12µm), making it ideal for qualitative analysis and routine filtration tasks. The uniform surface texture ensures consistent flow rates, while its chemical compatibility allows safe use with a wide range of solvents and aqueous solutions. This grade is particularly valued for its balance between filtration speed and retention efficiency, reducing clogging while maintaining clarity in filtrates. The paper’s low ash content (<0.06%) minimizes contamination risks, ensuring reliable results in sensitive procedures. Available in multiple diameters and sheet sizes, it adapts to various filtration setups, from small-scale experiments to large-volume processing. Its acid-washed treatment enhances purity, while the natural cellulose composition provides biodegradability for eco-conscious labs. Whether used in gravity or vacuum filtration, Whatman Grade 3 delivers reproducible performance, making it a staple in research, quality control, and educational laboratories.
FAQs
1. What is the particle retention range for Whatman Grade 3 filter paper?
The retention range is 6-12µm, making it suitable for medium-particle filtration where both speed and clarity are required.
2. Can this filter paper be used with organic solvents?
Yes, it is compatible with most organic solvents and aqueous solutions, though prolonged exposure to strong acids or alkalis may affect performance.
3. How does the wet strength of Grade 3 compare to other Whatman grades?
Grade 3 offers higher wet strength than Grade 1 (11µm) but is less robust than Grade 4 (20-25µm), balancing durability with filtration efficiency.
4. What is the ash content of this filter paper?
The ash content is less than 0.06%, ensuring minimal residue interference in sensitive analytical procedures.
5. Are there alternatives for faster or slower filtration?
For faster flow, consider Whatman Grade 1 (11µm); for finer retention, Grade 4 (20-25µm) or Grade 42 (2.5µm) are suitable alternatives.
