Grade 52

Key Features:

Acid-Hardened Surface: The filter paper’s acid-hardened surface improves durability and enhances performance in vacuum filtration, allowing for effective precipitate recovery.
High-Quality Materials: Manufactured from high-quality cotton linters and treated to remove trace metals, ensuring high purity and minimal contamination.
High Wet-Strength and Chemical Resistance: These features provide robustness during filtration and resistance to chemicals, making it suitable for a wide range of applications.
Nominal Particle Retention: With a particle retention rating of 7 µm, it captures a range of particle sizes effectively.
Medium Flow Rate: The Herzberg filtration speed of 235 seconds reflects a balance between filtration speed and thoroughness.
High Purity: The ash content is very low, at 0.015% maximum, contributing to minimal contamination in sensitive analyses.
Compatibility: Ideal for use with both Hirsch and Büchner funnels in vacuum filtration systems.

Whatman Grade 52 filter paper is a versatile choice for general-purpose quantitative analysis, offering high wet-strength, chemical resistance, and effective particle retention. Its properties make it particularly useful in vacuum filtration systems where precise precipitate recovery and low contamination are essential.