Grade 2540 is a high-purity hardened ashless quantitative filter paper designed for demanding analytical filtration applications. It combines a medium-slow filtration speed and flow rate with excellent purity, mechanical strength and chemical resistance.
The filter paper has a hard, tough surface that provides reliable performance during filtration and handling. Its ashless construction makes it particularly suitable for gravimetric analysis, where extremely low ash content is essential for accurate analytical results.
Grade 2540 offers high resistance to strong acids and alkalis, making it suitable for filtration involving aggressive chemical solutions. It is frequently used in the gravimetric analysis of metals in acid and alkaline solutions and for collecting hydroxides following precipitation with strong alkalis.
| Type | Grade | Ref. Grade | Product Code | Size (mm) | Pack |
|---|---|---|---|---|---|
| Hardened Ashless | 2540 | 540 | 2540-110-100C | 110 | 100 |
| Hardened Ashless | 2540 | 540 | 2540-125-100C | 125 | 100 |
| Hardened Ashless | 2540 | 540 | 2540-150-100C | 150 | 100 |
