Grade 50 Filter for Quantitative Analysis, Thin, Circle
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$31.91
100
/ Pack
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Description
Whatman Grade 50 quantitative hardened low ash filter paper is highly glazed to enable recrystallization of very fine precipitates using Büchner funnel or Hirsch funnel filtration.
This hard, very thin, high wet-strength Grade 50 quantitative filter paper withstands wet handling and precipitate removal by scraping. With very minimal fiber shedding, they are an especially good choice for use as carriers in integrated circuits.
Whatman low ash hardened filter paper for quantitative analysis is available in three grades. All three are designed for use in gravity and vacuum suction filtration in Buchner and Hirsch funnels. Grade 50 is also available in Smear Tab format for wipe testing, such as surface testing for radionuclide contamination.
All Whatman low ash hardened filter papers can be customized for an exact fit.
Features
- 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.
Product Specifications
| Manufacturer Part 1450-042: | Diameter 42.5 mm |
|---|---|
| Manufacturer Part 1450-055: | Diameter 55 mm |
| Manufacturer Part 1450-070: | Diameter 70 mm |
| Manufacturer Part 1450-090: | Diameter 90 mm |
| Manufacturer Part 1450-110: | Diameter 110 mm |
| Manufacturer Part 1450-125: | Diameter 125 mm |
| Manufacturer Part 1450-150: | Diameter 150 mm |
| Manufacturer Part 1450-185: | Diameter 185 mm |
| Manufacturer Part 1450-240: | Diameter 240 mm |
| Manufacturer Part 1450-320: | Diameter 320 mm |
| Manufacturer Part 1450-500: | Diameter 500 mm |
| Manufacturer Part 1450-063: | Diameter 63.5 mm |
|---|---|
| Grade: | 50 |
| Shape: | Circles |
| Typical Particle Retention in Liquid: | 2.7 µm |
| Nominal thickness: | 115 µm |
| Typical water flow rate: | 10 ml/min |
| Nominal basis weight: | 96 g/m² |
| Nominal air flow rate: | 144 s/100 mL/in² |
| Nominal Ash Content: | 0.015% |
| Material: | High-quality cotton linters |
| Alpha Cellulose Content Min: | ≥98% |
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