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Grade 50 Filter for Quantitative Analysis, Thin, 90 mm circle (100 pcs) 1450-090

GR 50 9CM 100/PK
Availability: 4 in stock
SKU: 1450-090
Manufacturer: Cytiva
Pack Size: 100

 

Grade 50 Filter for Quantitative Analysis, Thin, 90 mm circle (100 pcs)

Whatman Grade 50 quantitative hardened low ash filter paper is highly glazed to enable recrystallization of very fine precipitates using Büchner funnel or Hirsch funnel filtration.
 
This hard, very thin, high wet-strength Grade 50 quantitative filter paper withstands wet handling and precipitate removal by scraping. With very minimal fiber shedding, they are an especially good choice for use as carriers in integrated circuits.
  • Slow filtration for strong retention of very fine particles
  • Thinner filter design (average thickness 115 µm) than most Büchner filter papers
  • 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)
  • Acid-treated for high wet-strength and chemical resistance
  • Hardened to minimize fiber shredding
 

Product specifications

Grade 50 Filter for Quantitative Analysis, Thin, 90 mm circle (100 pcs)

GradeGrade 50 
FormatCircles 
TypeHardened low ash 
Diameter90 mm
Typical Particle Retention in Liquid2.7 µm 
Nominal thickness115 µm
Typical water flow rate at 45 psi (3.1 bar)10 ml/min 
Nominal basis weight96 g/m²
Nominal air flow rate144 s/100 mL/in² 
Nominal Ash Content0.015% 
MaterialHigh-quality cotton linters 
Alpha Cellulose Content Min.≥98% 
ApplicationFor qualitative or quantitative filtrations requiring vacuum assistance on Büchner or 3-piece filter funnels. 

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