WHA1450110
Whatman® quantitative filter paper, hardened low-ash, Grade 50
circles, diam. 110 mm, pack of 100
Synonym(s):
Whatman filter, Z241768, filter paper, paper filter
About This Item
material
circles
cotton filters (high-quality cotton linters)
packaging
pack of 100
manufacturer/tradename
Whatman 1450-110
Whatman Article No. 28418082 (US reference)
parameter
2685 sec/100 mL speed (Herzberg)
6 psi wet burst
diam.
110 mm
thickness
0.12115 μm
ash
≤0.015%
pore size
2.7 μm (Particle retention)
basis weight
97 g/m2
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General description
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.
Features and Benefits
- Thinner filter design (average thickness 115 µm) than most Büchner filter papers
- Nominal particle retention of 2.7 µm
- Slow flow rates (Herzberg filtration speed 2685 s)
- High purity and low ash content (0.015% ash maximum)
- Acid-treated for high wet-strength and chemical resistance
- Hardened to minimize fiber shredding
Other Notes
Legal Information
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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