What is the pore size of Whatman filter paper 40?
What is the pore size of Whatman filter paper 40?
8 μm
Specifications
| Material | High-quality Cotton Linters |
|---|---|
| Format | Circle |
| Grade | Grade 40 |
| Pore Size | 8 μm |
| Porosity | Medium |
What is the pore size of Whatman #1 filter paper?
11 μm
Grade 1: 11 μm (medium flow filter paper) The most widely used filter paper for routine applications with medium retention and flow rate.
Which Whatman number filter paper is used in chromatography?
In chromatography, the absorbent medium e.g. Whatman filter paper is known as the stationary phase.
Why Whatman paper is used in chromatography?
Whatman chromatography papers are the most widely used papers for chromatography worldwide. This acceptance and usage reflects the purity, high quality and consistency of Whatman papers. These qualities are relied upon by chromatographers and essential to successful reproducible chromatography.
What is the pore size of Whatman filter paper 42?
2.5 micro meter
Glass Fiber Whatman 42 Filter Papers, Thickness: 200 Micro Meter
| Pore Size | 2.5 micro meter (Particle retention) |
|---|---|
| Thickness | 200 Micro meter |
| Diameter | 125 mm |
| Ash | Less and equal than 0.07% |
| Basis Weight | 100 g/m2 |
What is the pore size of Whatman filter paper 3?
6 μm
Grade 3: 6 μm, (medium flow, thick filter paper) The extra thickness gives increased wet strength and makes this grade highly suitable for use in Büchner funnels.
Why Whatman filter paper is used in gravimetric analysis?
Whatman qualitative filter papers are basically cellulose filters that are used to determine and identify materials in qualitative analytical techniques. There are pre-pleated qualitative filters available that provide improved flow rate and increases the loading capacity.
Can we use ordinary paper instead of filter paper?
Sure you can filter fluids with ordinary paper if you have no specific objective in either particle retention or passage. Ordinary paper has no predictable filtering properties. Furthermore usually you would wish to control what contaminants might be transferred from paper into your fluid.
