Whatman Qualitative Filter Paper Grade 2V 125mm Circles Cellulose 200 Filters

The Whatman 1202125 Qualitative Filter Paper is a laboratory consumable designed for general-purpose filtration. These filter paper circles have a diameter of 125mm, making them a standard size for use with conical filter funnels. They are made from high-quality cellulose, a material known for its reliability in routine laboratory applications.

These filters are classified as Grade 2V, which indicates they are pre-pleated, or fluted. This pre-folded design offers several advantages over flat circles, including a faster flow rate, increased loading capacity, and a reduction in filtration time because the paper exposes a larger surface area. The nominal particle retention rating is 8 µm, making it slightly more retentive and absorbent than Grade 1 filter paper. This filter paper is suitable for filtering precipitates like lead sulfate and calcium carbonate, as well as for applications such as soil analysis and monitoring atmospheric contaminants.