Whatman® quantitative filter paper, hardened low-ash, Grade 50
ALDRICH/WHA1450320 - circles, diam. 320 mm, pack of 100
Synonym: Whatman filter; Z740586; filter paper; paper filter
Product Type: Equipment/Book
ash | ≤0.015% |
basis weight | 97 g/m2 |
diam. | 320 mm |
manufacturer/tradename | Whatman 1450-320 |
Whatman Article No. 28418088 (US reference) | |
material | circles |
cotton filters (high-quality cotton linters) | |
packaging | pack of 100 |
parameter | 2685 sec/100 mL speed (Herzberg) |
6 psi wet burst | |
pore size | 2.7 μm (Particle retention) |
thickness | 0.12115 μm |
General description: | The maximum ash content of these filter paper grades is intermediate between ashless and qualitative grades. They are particularly suitable for Büchner filtrations where it is desirable to recover the precipitate from the filter surface after filtration. Other characteristics include high wet strength and chemical resistance which are similar to the acid hardened ashless filter papers. Grade 50: 2.7 μm (slow filter paper) Retention of very fine crystalline precipitates. The thinnest of all Whatman filter papers. Slow flow rate. Hardened and highly glazed surface. This finish also keeps the paper free from loose surface fibers. Highly suitable for qualitative or quantitative filtrations requiring vacuum assistance on Büchner or 3-piece filter funnels. Very strong when wet. Will withstand wet handling and precipitate removal by scraping. In the electronics industry, the virtual absence of fiber shedding is utilized in carriers for integrated circuits. |
Legal Information: | Whatman is a registered trademark of Cytiva |
Other Notes: | Field of Use : For internal research use only. Products are not intended for diagnostic use or resale. |
UNSPSC | 41104900 |