Grade 52 Filter for Quantitative Analysis, General, Circle

GE’s Whatman Grade 52 is a general-purpose filter paper for quantitative analysis in Büchner funnel and other vacuum filtrations. The acid-hardened surface and low ash content enable efficient precipitate recovery.

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Description

  • Manufactured from high-quality cotton linters and treated to remove trace metals
  • High wet-strength and chemical resistance
  • Nominal particle retention of 7 µm
  • Medium flow rate (Herzberg filtration speed 235 s)
  • High purity (0.015% ash maximum)
  • Compatible with Hirsch or Büchner funnel applications

GE Healthcare’s Life Sciences business offers three grades of hardened low ash filter paper. All three are designed for use in Hirsch and Büchner funnel applications and can be customized for an exact fit.

Büchner funnel vacuum filtration

The quality of analysis resulting from vacuum filtration using a Hirsch or Büchner funnel relies on using a high-quality filter that avoids introducing artifacts into measurement. GE’s Grade 52 hardened filter paper is acid-treated to prevent fiber shredding during vacuum filtration or precipitate collection.

   Parameter Grade 52 Filter for Quantitative Analysis, General, Circle
   Grade                                                    : Grade 52
   Type                                                      : Hardened low ash
   Typical Particle Retention in Liquid1     : 7 µm
   Nominal Thickness                               : 175 µm
   Typical water flow rate                        : 66 ml/min
   Nominal Basis Weight                           : 96 g/m²
   Nominal Air Flow Rate                          : 15 s/100 mL/in²
   Nominal Ash Content                         : 0.015%
   Material                                                 : High-quality cotton linters
   Alpha Cellulose Content Min.               : ≥98%
   Application                                            : Suitable for Büchner filtrations where it is desirable to recover the precipitate from the filter surface after filtration.
   Format & Dimensions                           : Circle – Ø90 mm, Ø110 mm, Ø125 mm, Ø150 mm, Ø240 mm
   Pack Size                                             : 100 pieces
  • 1Particle retention rating at 98% efficiency.
  • 2For 9 cm diameter
  • 3Ash is determined by ignition of the cellulose filter at 900°C in air.

Order now

To make your order, please contact us at  info@polyscientific.com.my or call us at +6 06 3350 690

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