What is Whatman filter paper number 41?
Grade 41: 20 μm (fast filter paper)
The fastest ashless filter paper, recommended for analytical procedures involving coarse particles or gelatinous precipitates (e.g., iron or aluminum hydroxides).
What is the pore size of Whatman filter paper 41?
20 μm
Whatman Grade 41 -Quantitative Filter Papers – 1441-110, 1441-125, Pore Size-20 μm (12.5 cm)
What is difference between Whatman filter paper 41 and 42?
Grade 41 filter paper was used for the first filtration step, and Grade 42 filter paper was used for the second filtration step (Table 1). The data show that the use of Grade 42 quantitative filter paper gave very stable results with good repeatability.
Which Whatman filter paper is best?
Grade 1 is the most widely used filter paper from Whatman; ideal for routine applications with medium retention and flow rate.
What is the pore size of Whatman filter paper 42?
2.5 μm
Grade 42: 2.5 μm (slow filter paper)
A world standard for critical gravimetric analysis with the finest particle retention of all Whatman cellulose filter papers.
What is the pore size of Whatman filter paper 40?
8 μm
Grade 40: 8 μm (medium flow filter paper)
Also used as a high-purity filter in the collection of trace elements and radionuclides from the atmosphere.
What is the pore size of Whatman 42 filter paper?
Specifications
| Format | Circle |
|---|---|
| Grade | Grade 42 |
| Pore Size | 2.5 μm |
| Porosity | Fine |
Why it is called Whatman filter paper?
What is Whatman Filter Paper? “Whatman filter paper is a specific type of filter paper that is used for qualitative analysis. These filter papers contain cellulose fibers, and people manufacture them from high quality cotton linters (First, we have to treat them in order to increase the amount of alpha cellulose).
Why do we use Whatman filter paper No 1?
In agriculture it is used for soil analysis and seed testing procedures. In food and drink to separate solid foodstuffs from liquid, and is widely used in education for teaching analytical separation techniques. Camlab choice equivalent of Whatman No 1 is grade 601 I the same sizes and specification.
What is the use of Whatman paper 42?
42. Whatman quantitative filters are designed for gravimetric analysis and the preparation of sample for instrumental analysis. Ashless filter papers with 0.007% ash maximum are very pure filters ideal for a wide range of critical analytical filtration procedures.
What is the pore size of Whatman filter paper 44?
3 μm
Whatman™ Grade 44 Quantitative Filter Paper provides faster gravimetric analysis with filter thinner material.
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Specifications.
| Description | Grade 44 Ashless Filter Paper, Thin, 240 mm circle (100 pcs) |
|---|---|
| Pore Size | 3 μm |
| Flow Rate | Medium |
| Grade | Grade 44 |
| Quantity | 100 Pack |
What pore size is a Whatman 42 filter paper?
What is the pore size of Whatman filter paper 1?
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.