Whatman® quantitative filter paper, hardened ashless, Grade 541
ALDRICH/WHA1541320 - circles, diam. 320 mm, pack of 100
Synonym: Z752819
Product Type: Equipment/Book
| ash | ≤0.006% |
| basis weight | 82 g/m2 |
| diam. | 320 mm |
| manufacturer/tradename | Whatman 1541-320 |
| Whatman Article No. 28418243 (US reference) | |
| material | circles |
| cotton filters (high-quality cotton linters) | |
| packaging | pack of 100 |
| parameter | 34 sec/100 mL speed (Herzberg) |
| 7 psi wet burst | |
| pore size | 22 μm (Particle retention) |
| thickness | 155 μm |
| Application: | Hardened ashless filter paper is recommended when fast filtration of a gelatinous precipitate for gravimetric analysis is performed on a strongly acidic or alkali solution. Applications of Grade 541 papers include: • Use as an animal foodstuff filter for determining fiber content • Determination of gelatin content in milk and cream • Quantification of chloride in cement, as well as chloride and phosphorous in coal and coke |
| Features and Benefits: | • High wet-strength • High chemical resistance to strong acid and alkali suspensions • Retention of gelatinous precipitate • 22 µm nominal particle retention rating • Fast flow rate (Herzberg filtration speed 34 s) • Maximum of 0.006% ash concentration |
| General description: | Cytiva′s Whatman Grade 541 acid hardened cellulose filter paper features high wet-strength, high chemical resistance, and a large nominal particle retention for fast analytical filtration. Along with fast Grade 541 filter paper, the hardened, ashless range from Cytiva′s business includes general-purpose Grade 540 and Grade 542 for fine particle retention. All three paper grades are appropriate for use in gravimetric analysis with strong acids and alkali samples. |
| 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 |