Filter Paper: Grade 541 Circles 110mm

Recommended when fast filtration of a gelatinous precipitate for gravimetric analysis is performed on a strongly acidic or alkali solution. Whatman™ Quantitative Filter Paper: Grade 541 Circles are acid hardened cellulose filters, which reduces ash to an extremely low level. 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. Large nominal particle retention for fast analytical filtration. 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 Quantitative determination of milk sediment No. per Pack: 100 Airflow Rate: 3 s/100 mL/in 2 Material: Cotton Linters Filtration Speed: ASTM, 12 seconds; Herzberg, 34 seconds For Use With (Application): Typical applications include fiber in animal foodstuffs, gelatine in milk and cream, chloride in cement, and chloride and phosphorous in coal and coke. Porosity: Coarse Thickness (Metric): 155 μm Diameter (Metric): 110 mm Format: Disc Particle Retention: 22 μm Flow Rate: 359mL/min Grade: Grade 541 Quantity: 100/Pk. Type: Quantitative Filter Paper Diameter (English): 4.33 in. Currency: EUR