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Cytiva Whatman™ Quantitative Filter Paper: Grade 540 Circles
Use as a gravimetric filter during analysis of metals in acidic or alkaline solutions and in the collection of hydroxides. Whatman™ Quantitative Filter Paper: Grade 540 Circles acid-treated surface prevents tearing during filtration and allows the user to scrape precipitates from the paper.
Brand: Cytiva 1540-150
This item is not returnable.
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Description
Use as a gravimetric filter during analysis of metals in acidic or alkaline solutions and in the collection of hydroxides. Whatman™ Quantitative Filter Paper: Grade 540 Circles acid-treated surface prevents tearing during filtration and allows the user to scrape precipitates from the paper.
Whatman hardened ashless quantitative filter papers are acid-hardened to give high wet strength and chemical resistance with extremely low ash content. They are suitable for a wide range of critical filtration procedures.- High-purity, acid-treated cellulose lab filter paper
- Mechanically strong
- Well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples
- Extremely low ash content (0.006% ash maximum)
- Nominal particle retention of 8 μm
- Medium flow rate (Herzberg filtration speed 200 s)
Specifications
| 13 s/100 mL/in2 | |
| Disc | |
| 8 μm | |
| Frequently used in the gravimetric analysis of metals in acid/alkali solutions and in collecting hydroxides after precipitation by strong alkalis. | |
| Medium | |
| 160 μm | |
| 5.9 in. |
| Grade 540 Ashless General Lab Filter Paper, 150 mm circles (100 pcs) | |
| Cotton Linters | |
| ASTM, 55 seconds; Herzberg, 200 seconds | |
| Grade 540 | |
| 100/Pk. | |
| Hardened Ashless | |
| 150 mm |