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Z240397 Aldrich

Whatman® qualitative filter paper, Grade 3

circles, diam. 42.5 mm, pack of 100

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Properties

Related Categories Filtration Supplies, Labware, Paper Filters, Qualitative
material   circles
packaging   pack of 100
mfr. no.   Whatman, 1003-042
parameter   0.40 psi wet burst
  325 sec/100 mL speed (Herzberg)
diam.   42.5 mm
thickness   390 μm
ash   ≤0.06%
pore size   6 μm (Particle retention)
basis weight   185 g/m2

Description

General description

These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.

Grade 3: 6 μm, (medium flow, thick filter paper)
Double the thickness of Grade 1 with still finer particle retention and excellent loading capacity; more precipitate can be held without clogging. The extra thickness gives increased wet strength and makes this grade highly suitable for use in Büchner funnels. The high absorbency is particularly valuable when the paper is used as a sample carrier.

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Whatman is a registered trademark of GE Healthcare

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