Description
Specifications Table
Product Name – Whatman Grade 4V Cellulose Filter Paper
Quantity/Pack Size – 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)
Form – Circular sheets
Grade – 4V (medium retention, fast flow)
Application – General lab filtration, qualitative analysis
Product Overview
Whatman Grade 4V cellulose filter paper is engineered for reliable performance in laboratory filtration applications. Made from high-quality, acid-washed cellulose, this filter paper ensures minimal extractables and consistent results. The medium retention grade is designed to capture fine particles while maintaining a fast flow rate, making it suitable for a wide range of filtration tasks. The uniform pore structure enhances clarity in filtrates, reducing the need for repeated filtration. Each sheet is manufactured to strict quality standards, ensuring batch-to-batch consistency. The filter paper is compatible with most common lab solvents and aqueous solutions, providing versatility across different protocols. Its robust construction minimizes fiber shedding, which is critical for maintaining sample integrity. Whether used in gravity or vacuum filtration setups, Whatman Grade 4V delivers dependable performance, making it a staple in research and analytical laboratories. The filter paper is available in multiple diameters to accommodate various funnel sizes, ensuring flexibility in experimental setups. Its neutral pH and low ash content further enhance its suitability for sensitive applications where purity is paramount.
FAQs
1. What is the particle retention range of Whatman Grade 4V filter paper?
Whatman Grade 4V filter paper has a particle retention range of approximately 4-7 microns, making it suitable for medium-fine filtration tasks.
2. Can this filter paper be used with organic solvents?
Yes, Whatman Grade 4V is compatible with most common organic solvents, including alcohols, ketones, and hydrocarbons, though compatibility should always be verified for specific applications.
3. How does the flow rate of Grade 4V compare to other Whatman grades?
The flow rate of Grade 4V is faster than high-retention grades like 42 but slower than coarse grades like 1, offering a balanced option for general filtration needs.
4. What is the ash content of this filter paper?
The ash content of Whatman Grade 4V is less than 0.06%, ensuring minimal residue that could interfere with analytical results.
5. Is this filter paper autoclavable?
Yes, Whatman Grade 4V can be autoclaved at standard conditions (121?C, 15 psi) for sterilization without compromising its filtration properties.
