

⚗️ Elevate your lab game with precision filtration that never slows you down!
StonyLab Qualitative Filter Paper Circles (56 mm) offer reliable coarse cellulose filtration with 20 micron particle retention and fast filtration speeds (35-70 sec). Designed for qualitative lab analysis, these low-ash (≤0.15%) filters ensure clean, efficient separation of solids from liquids. Ideal for Buchner funnels and diverse chemical environments, they combine premium quality with cost-effective convenience, trusted by over 600 professionals.
| Customer Reviews | 4.6 out of 5 stars 634 Reviews |
L**L
filter good ice cream also good..cigarettes bad
Buchner funnels are indispensable tools in chemistry laboratories, widely employed for vacuum filtration. One crucial component that enhances their efficiency is the paper filter. These filters play a pivotal role in the separation of solids from liquids, offering a range of benefits that significantly contribute to the success of various scientific experiments. Enhanced Filtration Efficiency One of the primary advantages of utilizing paper filters in Buchner funnels is the notable improvement in filtration efficiency. The porous structure of paper filters allows for the efficient retention of solid particles while facilitating the passage of liquid through the filter. This ensures a faster and more effective separation process, saving valuable time in the laboratory. Precise Particle Retention Paper filters exhibit a remarkable ability to retain particles of different sizes with precision. This is particularly important in experiments where the separation of specific particle sizes is critical. The controlled porosity of paper filters enables scientists to tailor their filtration processes according to the requirements of their experiments, ensuring accurate and reliable results. Reduced Risk of Contamination The use of paper filters in Buchner funnels helps minimize the risk of contamination in experimental samples. The high-quality materials used in manufacturing these filters, such as cellulose or glass microfiber, provide a clean and inert environment for the filtration process. This is especially crucial in sensitive experiments where even trace contaminants can skew results. Compatibility with a Variety of Substances Paper filters are versatile and compatible with a wide range of substances, making them suitable for diverse laboratory applications. Whether filtering aqueous solutions, organic solvents, or suspensions, paper filters exhibit stability and effectiveness across different chemical environments. This versatility makes them a go-to choice for scientists working with various substances in their research. Ease of Use and Convenience The simplicity of incorporating paper filters into Buchner funnels adds to their appeal. The filters are readily available, easy to handle, and require minimal preparation. This convenience not only streamlines laboratory procedures but also enhances the overall user experience. Researchers can focus on the scientific aspects of their work without being burdened by complicated filtration processes. Cost-Effectiveness From an economic standpoint, paper filters offer a cost-effective solution for laboratory filtration. Compared to some alternative filtration methods, the affordability of paper filters makes them an attractive choice for researchers working within budget constraints. This cost-effectiveness does not compromise the quality of results, making paper filters a practical and efficient option for a wide range of scientific applications. Conclusion In conclusion, the integration of paper filters into Buchner funnels brings about a myriad of benefits that significantly contribute to the success of laboratory experiments. From enhanced filtration efficiency and precise particle retention to reduced contamination risks and versatility across different substances, paper filters prove to be indispensable tools in the scientific toolkit. Their ease of use, cost-effectiveness, and overall convenience further underscore their importance in facilitating successful and reliable filtration processes in the realm of laboratory research.
K**R
Great filters , great value!
These 56mm filters fit perfectly in a CoorsTek 60240 porcelain buchner funnel. I could not get them to fit with Stonylab porcelain buchner filters. They work best with cold water extractions, from my experience, but i have used water alcohol mixtures, solvents such as chloroform, and vacuum filtration of small amounts of concentrated acids, and they seem to hold up well. They work well for filtering fine charcoal, and other fine particulates. I use them almost daily!
D**S
Worked well for me.
Worked well for me.
C**N
Will buy again!
They fit well into my buchner funnel and I have had no issues with them sealing under a light vacuum. I will need to purchase more of these at the end of the school year at this rate.
Y**E
Filters
Item is as described. Good quality. Fast shipping.
A**R
Using for 45mm espresso basket
Seem to work fine. A hard size to come by...
C**R
worked as expected
Item exactly as described and we put them to use the very next day in the lab.
K**H
Not good for silver nitrate
It was in the "customers also bought" suggestion but it too big for the buchner funnel. And they fall apart with silver nitrate
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