• USA Home
  • Z241385 - Whatman® quantitative filter paper, ashless, Grade 41

EMAIL THIS PAGE TO A FRIEND
Z241385 Aldrich

Whatman® quantitative filter paper, ashless, Grade 41

circles, diam. 110 mm, pack of 100

Synonym: Whatman filter, Whatman paper, filter papers, paper filter

Purchase

Properties

Related Categories Filtration Supplies, Labware, Manufacturer Browser, Paper Filters, Quantitative,
material   circles
  cotton filters (high-quality cotton linters)
packaging   pack of 100
mfr. no.   Whatman Article No., 28418018 (US reference)
  Whatman, 1441-110
parameter   0.22 psi wet burst
  54 sec/100 mL speed (Herzberg)
diam.   110 mm
thickness   220 μm
ash   ≤0.007%
pore size   20-25 μm (Particle retention)
basis weight   85 g/m2

Description

General description

Whatman quantitative filters are designed for gravimetric analysis and the preparation of samples for instrumental analysis. They are available in three formats designed to meet your specific needs.

Ashless
: 0.007% ash maximum for Grades 40 to 44 and a maximum of 0.01% for the 589 Grades - very pure filters suitable for a wide range of critical analytical filtration procedures.

Hardened low ash
: 0.015% ash maximum - treated with a strong acid to remove trace metals and produce high wet strength and chemical resistance. These filters are particularly suitable for Büchner filtration where the tough smooth surface of the filter makes it easy to recover precipitates.

Hardened ashless:
0.006% ash maximum - acid hardened to give high wet strength and chemical resistance with extremely low ash content. The tough surface makes these filters suitable for a wide range of critical filtration procedures.

Grade 41: 20 μm (fast filter paper)

The fastest ashless filter paper, recommended for analytical procedures involving coarse particles or gelatinous precipitates (e.g., iron or aluminum hydroxides). Also used in quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates.

Other Notes

Global SIAL customers (excluding Japan) can now order any product from the GE Healthcare 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.

This product has been replaced by WHA1441110-ALDRICH | Whatman quantitative filter paper, ashless, Grade 41, circles, diam. 110 mm, pack of 100

Legal Information

Whatman is a registered trademark of GE Healthcare

Price and Availability


Sterifil Aseptic System and Holder
Safety & Documentation

Safety Information

Safety Information for this product is unavailable at this time.

Documents

Certificate of Analysis

Protocols & Articles
Related Products

replaced by

Product #

Description

Add to Cart

WHA1441110 Whatman® quantitative filter paper, ashless, Grade 41, circles, diam. 110 mm, pack of 100

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?