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  5. Cytiva Whatman™ Quantitative Filter Paper: Grade 50 Circles

Cytiva Whatman™ Quantitative Filter Paper: Grade 50 Circles

Product Code. 11372975
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Diameter (Metric):
42.5 mm
55 mm
70 mm
90 mm
110 mm
125 mm
150 mm
185 mm
240 mm
320 mm
Unit Size:
Pack of 100
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Product Code. Diameter (Metric) unitSize
11372975 185 mm Pack of 100
11320494 42.5 mm Pack of 100
10494831 55 mm Pack of 100
11340494 70 mm Pack of 100
11332975 90 mm Pack of 100
11342975 110 mm Pack of 100
10634371 125 mm Pack of 100
10002211 150 mm Pack of 100
11382975 240 mm Pack of 100
11380484 320 mm Pack of 100
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Product Code. 11372975 Supplier Cytiva Supplier No. 1450185
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69.73 GBP valid until 2026-05-31
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Description

Enables strong retention for very fine crystalline precipitates. Whatman™ Quantitative Filter Paper: Grade 50 Circles withstand shredding, wet handling, and precipitate removal by scraping.

Highly glazed, hardened filter paper
  • Thinner filter design (average thickness 115 μm) than most Büchner filter papers
  • Acid-treated for high wet-strength and chemical resistance
  • Nominal particle retention of 2.7 μm
  • Slow flow rates (Herzberg filtration speed 2685 s)
  • High purity and low ash content (0.015% ash maximum)
  • Compatible with Hirsch or Büchner funnels
TRUSTED_SUSTAINABILITY

Specifications

Airflow Rate 144 s/100 mL/in2
Description Grade 50 Filter for Quantitative Analysis, Thin, 185 mm circle (100 pcs)
Filter Type Hardened Low Ash
Format Disc
Material Cotton Linters
Particle Retention 2.7 μm
Pore Size 2.7 μm
Filtration Speed ASTM, 250 seconds; Herzberg, 2685 seconds
Flow Rate Slow
For Use With (Application) For qualitative or quantitative filtrations requiring vacuum assistance on Büchner or 3-piece filter funnels.
Grade Grade 50
Porosity Fine
Quantity 100 Pk.
Thickness (Metric) 115 μm
Type Quantitative Filter Paper
Diameter (Metric) 185 mm
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