Z241660

Whatman^® quantitative filter paper, hardened ashless, Grade 541

circles, diam. 90 mm, pack of 100

• Synonym(s): Whatman filter, filter papers, paper filter
• UNSPSC Code: 41104900
• eCl@ss: 32110215

Properties

• material: circles ; cotton filters (high-quality cotton linters)
• packaging: pack of 100
• manufacturer/tradename: Whatman 1541-090; Whatman Article No. 28418235 (US reference)
• parameter: 34 sec/100 mL speed (Herzberg); 7 psi wet burst
• diam.: 90 mm
• thickness: 155 μm
• ash: ≤0.006%
• pore size: 22 μm (Particle retention)
• basis weight: 82 g/m²

Description

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.

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

Other Notes

This product has been replaced by WHA1541090-ALDRICH | Whatman quantitative filter paper, hardened ashless, Grade 541, circles, diam. 90 mm, pack of 100

Global SIAL customers (excluding Japan) can now order any product from the Cytiva Life Sciences consumables portfolio (prepack only) using GE′s product numbering system.

The legacy GE Whatman products that use the SIAL "Z" product numbering system will be discontinued and directly replaced with a product number using a "WHA" prefix plus the GE product code. For reference, the legacy "Z" product number is identified as a synonym on the "WHA" product number listing.

Legal Information

Whatman is a registered trademark of Cytiva