Description
Specifications Table
Product Name – Whatman Grade 41 Pyramid Fold Filter Paper
Quantity/Pack Size – 110MM (Pack of 1000), 125MM (Pack of 100), 125MM (Pack of 1000)
Form – Pyramid Folded Sheets
Grade – Grade 41
Application – General Lab Filtration, Gravimetric Analysis, Air Monitoring
Product Overview
Whatman Grade 41 Pyramid Fold Filter Paper is engineered for high-efficiency filtration in laboratory settings, offering a balance of particle retention and flow rate. The pyramid fold design maximizes surface area, ensuring faster filtration while maintaining medium particle retention (8-12 ?m). This grade is ideal for applications requiring consistent performance, such as gravimetric analysis and routine lab filtrations. The filter paper is manufactured from high-purity cellulose, ensuring minimal extractables and compatibility with a wide range of solvents. Its wet strength is enhanced to prevent tearing during use, even under moderate pressure. The uniform thickness and porosity provide reproducible results, reducing variability in experimental outcomes. Whether used for aqueous or organic solutions, this filter paper delivers reliable separation without compromising clarity. The pack sizes cater to both high-volume and occasional users, ensuring cost-effective solutions for diverse lab needs. The acid-washed treatment further enhances purity, making it suitable for sensitive applications where contamination control is critical.
FAQs
1. What is the particle retention range of Whatman Grade 41 filter paper?
This filter paper retains particles in the 8-12 ?m range, making it suitable for medium-fine filtration tasks.
2. Can this filter paper be used with organic solvents?
Yes, Whatman Grade 41 is compatible with most organic solvents, though compatibility should be verified for specific chemicals.
3. How does the pyramid fold design improve filtration?
The pyramid fold increases the effective surface area, allowing for faster flow rates while maintaining particle retention efficiency.
4. Is this filter paper pre-treated for specific applications?
It is acid-washed to reduce extractables, enhancing purity for general lab and analytical applications.
5. What is the shelf life of this filter paper when stored properly?
When stored in a dry, sealed environment, the filter paper retains its properties for up to 5 years from the date of manufacture.
