What is the Difference Between Whatman Filter Paper and Normal Filter Paper?

The main difference between Whatman filter paper and normal filter paper lies in their ash content, intended use, and properties. Here are the key differences:

1. Ash Content: Whatman filter paper has an ash content of about 0.13%, while normal filter paper has varying ash content. In quantitative analysis, the ash content of normal filter paper does not exceed 0.007%, and in qualitative analysis, it does not exceed 0.1%.
2. Intended Use: Whatman filter paper is specifically designed for qualitative analysis, while normal filter paper can be used for both qualitative and quantitative analysis.
3. Properties: Whatman filter paper is made from high-quality cotton linters treated to maximize alpha cellulose content, which contributes to its consistency and high quality. Normal filter paper, on the other hand, can be made from various materials and may not have the same level of alpha cellulose content.
4. Grade: Whatman filter paper is a specific grade of filter paper, and there are numerous grades available, divided according to thickness, weight, and particle retention. Normal filter paper can refer to a wide range of filter papers, including quantitative and qualitative filter papers, as well as those made from different materials.

In summary, Whatman filter paper is a specific type of filter paper designed for qualitative analysis, with a higher ash content and made from high-quality cotton linters. Normal filter paper can refer to a broader range of filter papers, including quantitative and qualitative filter papers, and can be made from various materials.

Comparative Table: Whatman Filter Paper vs Normal Filter Paper

Here is a table comparing the differences between Whatman filter paper and normal filter paper:

Whatman filter paper is a specific type of filter paper used for qualitative analysis, containing cellulose fibers and manufactured from high-quality cotton linters. It has a high percentage of alpha cellulose, which indicates consistency and high quality. On the other hand, normal filter paper is a semi-permeable barrier used to separate components in a mixture. The differences in ash content and grade properties also set Whatman filter paper apart from normal filter paper.