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Filtration Products
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  Ultrafiltration
 
Cellulose Acetate Membrane Filters
  • Composed of cellulose di- and triacetate, these filters exhibit low static charge and high strength
  • May be sterilized repeatedly without loss of integrity or change in bubble point
  • Extremely low aqueous extractables (0.1 wt%)
  • Good resistance to heat and low molecular weight alcohols (compared to MCE membranes)
  • Use for filtration of enzyme solutions, diagnostic cytology, or receptor binding studies
      Cellulose Acetate Filter
    Magnification of Cellulose Acetate filter.
    Also available as syringe filter units.
     
    Product Specifications: Cellulose Acetate Membrane Filters
    Click here for chemical compatiblity information.
    Pore Size
    (μm)
    Bubble Point1
    Flow Rates2
    Porosity3
    (%)
    MPa
    psi
    Acetone
    (mL/min/cm2)
    Air
    (L/min/cm2)
    0.20
    ≥0.25
    ≥37.1
    16
    2
    66
    0.45
    ≥0.17
    ≥25.9
    35
    4
    68
    0.80
    ≥0.068
    ≥10.0
    160
    14
    72
    3.00
    ≥0.034
    ≥5.0
    500
    54
    78
     
  • Wetting Time: <3 seconds to wet a φ47mm disk with aqueous 1% methylene blue
  • Max. Operating Temperature: 180°C
  • Thickness: 125-135μm
  • Refractive Index: 1.47
  • Ash Content: See below.
    Notes:
    1. Bubble Point is the minimum pressure required to force air through a membrane which has been prewet with water.
    2. Flow Rates indicate initial flow rate at 10 psi using a KGS 47 filter holder:
         Water: using prefiltered (0.1μm) water
         Air: using prefiltered nitrogen
    3. Porosity refers to the percent open area.
     
    Ash Content (ppm): Cellulose Acetate Membrane Filters
    Al
    <5.0
    Ca
    36.4
    Cd
    <0.1
    Cr
    2.2
    Cu
    1.2
    Fe
    1.6
    K
    2.0
    Li
    <0.5
    Mg
    1.9
    Mn
    <0.5
    Mo
    <0.5
    Na
    5.9
    Ni
    <0.5
    Pb
    <0.5
    Si
    7.8
    Sn
    <0.5
    Ti
    <5.0
    Zn
    0.6
     
    Ordering Information: Cellulose Acetate Membrane Filters
    Choose the appropriate Pore Size and Membrane Diameter or Roll from the charts below to select a catalog number. Cellulose Acetate membrane filters are available as nonsterile, plain white disks and rolls in the packaging listed below. Product certification is available upon request.
  • For cellulose acetate suitable for electrophoresis or chromatography, please see our Chromatography Products.
    For price and availablity of any membrane filter, call us at 1-800-334-7132 or click here to contact us by email.
     
    Plain White Disks
    Pore Size
    (μm)
    φ13 mm
    φ25 mm
    φ37 mm
    φ47 mm
    φ90 mm
    φ142 mm
    φ293 mm
    Package of 100
    Package of 25
    0.20
    C020A013A
    C020A025A
    C020A037A
    C020A047A
    C020A090A
    C020A142A
    C020A293A
    0.45
    C045A013A
    C045A025A
    C045A037A
    C045A047A
    C045A090A
    C045A142A
    C045A293A
    0.80
    C080A013A
    C080A025A
    C080A037A
    C080A047A
    C080A090A
    C080A142A
    C080A293A
    3.00
    C300A013A
    C300A025A
    C300A037A
    C300A047A
    C300A090A
    C300A142A
    C300A293A
     
    Plain White Rolls
    Pore Size
    (μm)
    Single Roll,
    33cm 3m
    0.20
    C020A330R
    0.45
    C045A330R
    0.80
    C080A330R
     
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