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

Cytiva Whatman™ Quantitative Filter Paper: Grade 50 Circles

Catalog No. 09865J Shop All Cytiva Products
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Diameter (Metric):
42.5 mm
55 mm
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Catalog No. Diameter (Metric)
09-865J 42.5 mm
09-865A 55 mm
09-865B 70 mm
09-865C 90 mm
09-865D 110 mm
09-865E 125 mm
09-865F 150 mm
09-865G 185 mm
09-865H 240 mm
09-865L 320 mm
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Catalog No. 09-865J Supplier Cytiva Supplier No. 1450042
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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, 42.5 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) 42.5 mm
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