Whatman® Qualitative Filter Paper, Grade 3, circles, 55 mm

The Whatman® Qualitative Filter Paper, Grade 3 is a standard filter paper used in qualitative analytical techniques for material determination and identification. It is particularly suited for Büchner funnel applications, offering excellent particle retention, high loading capacity, and increased wet strength.

Key Features:

1. Enhanced Particle Retention:
   • Pore size of 6 µm, offering finer retention compared to Grade 1.
2. High Thickness and Absorbency:
   • Twice the thickness of Grade 1.
   • Supports greater precipitate loading without clogging.
3. Durability:
   • Increased wet strength, making it ideal for Büchner funnel use.
4. Prepleated Option:
   • Prepleated filters available for faster flow rates and higher loading capacities.
5. Versatile Applications:
   • Used in both qualitative analysis and as a sample carrier due to its high absorbency.
6. Convenient FilterCup Option:
   • Available as a disposable 70 mm FilterCup with an integral heat-bonded filter and 250 mL polypropylene funnel (Catalog No. 1600-003).

Specifications:

Product Dimensions 

Applications:

• Analytical Techniques:
  • Determination and identification of materials in qualitative analysis.
• Büchner Funnels:
  • Ideal for filtration processes requiring high wet strength and absorbency.
• Sample Carrier:
  • High absorbency makes it suitable for carrying and processing samples.

Advantages:

1. High absorbency and wet strength.
2. Superior loading capacity allows for more precipitate retention.
3. Versatile sizes and formats for varied applications.
4. Prepleated options for faster filtration rates.

Related Products:

• Prepleated Grade 3 Filters: Enhanced flow rates and loading capacity.
• FilterCup: Convenient disposable filters with integral funnel design.