Specifications Table

Product Name – Whatman 591 Cellulose Filter Paper
Quantity/Pack Size – 58x58CM (Pack of 100)
Form – Circular/Sheet
Grade – Medium Retention
Application – General Lab Filtration, Gravimetric Analysis

Product Overview

Whatman 591 is a high-quality cellulose filter paper engineered for reliable performance in laboratory filtration tasks. With a medium particle retention rating, this filter paper effectively captures fine to medium-sized particles while maintaining excellent flow rates. Its high wet strength ensures durability during filtration, reducing the risk of tearing or fiber shedding. The paper is chemically resistant, making it suitable for use with a wide range of solvents and aqueous solutions. Its uniform thickness and consistent porosity provide reproducible results, which is critical for accurate analytical procedures. The cellulose composition offers natural purity, minimizing the risk of contamination in sensitive applications. Available in multiple diameters and sheet sizes, Whatman 591 adapts to various filtration setups, from small-scale experiments to larger volume processing. The filter paper is designed to withstand autoclaving, allowing for sterile applications when required. Its smooth surface facilitates easy particle collection and analysis, while the acid-washed treatment enhances its compatibility with acidic solutions. Whether used in qualitative or quantitative filtration, Whatman 591 delivers consistent performance, making it a staple in laboratories requiring dependable filtration media.

FAQs

1. What is the particle retention range for Whatman 591 filter paper?

The medium retention grade of Whatman 591 typically captures particles in the 4-7 micron range, balancing filtration efficiency with flow rate.

2. Can this filter paper be used with organic solvents?

Yes, Whatman 591 is compatible with most organic solvents, though prolonged exposure to strong solvents may affect its structural integrity over time.

3. How should Whatman 591 filter paper be stored for long-term use?

Store in a cool, dry environment away from direct sunlight and chemical vapors to maintain its filtration properties and prevent contamination.

4. Is this filter paper suitable for vacuum filtration?

Whatman 591 performs well under vacuum conditions, though excessive pressure may cause deformation in larger diameter papers.

5. What alternatives exist for finer particle retention?

For finer filtration, consider Whatman Grade 42 or Grade 40 filter papers, which offer higher retention capabilities for sub-micron particles.