FunChem Qualitative Filter Paper Circles, 114 mm Diameter Cellulose Lab Filter Paper, 20 Micron Particle Retention, Medium Flow Filtration Speed, Pack of 100
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- Filter paper diameter: 114 mm
- Coarse cellulose filter papers remove particles > 20 μm
- Filtration Speed: 35 - 70 sec; Ash content: ≤0.15%
- Suitable for FunChem 1000ml Buchner filtering funnel
- Guaranteed after-sales service: if received defective or damaged item, please contact us. We will definitely help you solve the problem until you are satisfied
Estimated shipping
Select a product to estimate shipping.What is qualitative filter paper used for?
Qualitative filter paper is used for routine filtration, precipitation separation, and general experiments where precise ash content is not required. It is suitable for suspensions, solutions, and common laboratory liquids.
What is the difference between qualitative and quantitative filter paper?
Qualitative filter paper has higher ash content and is intended for general filtration tasks. Quantitative filter paper has extremely low ash content and is designed for precise analytical work such as gravimetric analysis.
Is this filter paper reusable?
No. Qualitative filter paper is intended for single use. Reusing it may reduce filtration efficiency and lead to contamination. A fresh filter paper is recommended for each experiment.
Can qualitative filter paper be used for vacuum filtration?
Yes. It can be used with ceramic funnels, Buchner funnels, or vacuum filtration setups for faster filtration, although it is less precise than quantitative filter paper for analytical measurements.
How does it compare with a sintered glass funnel?
Qualitative filter paper is disposable and convenient for routine filtration. Sintered glass funnels are reusable and provide finer filtration. For most general laboratory tasks, filter paper is sufficient, while sintered glass suits precision work.
Product details
| Main Specification | |
|---|---|
| Manufacturer | Hubeiyouquhuaxuepinyouxiangongsi |
| Brand | FunChem |
| Product Dimensions | 4.72 x 4.72 x 1.97 inches |
| Item Weight | 3.17 ounces |
| Product information | |
| Item model number | FC000262 |
| Others | |
| Date First Available | 2026 or April 20 |
| Product Type | Qualitative Filter Paper |