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Fumasep FAS-PET-75 is a PET reinforced Anion Exchange Membrane (AEM) with low resistance, high selectivity, high mechanical stability, and high stability in pH neutral and acidic environments.
Fumasep FAS-PET-75 membrane comes in a 20cm x 30cm size sheet that is delivered in a dry brown-foil form.
• Applications: Electrodialysis for demineralisation, desalination, acid recovery applications and others.
• Anion Exchange Membrane
• Stability Rang (pH) at 25°C: 0 - 8
• Thickness: 70 - 80 micrometers (2.76 - 3.15 mil)
• Size: 20cm x 30cm
Keep membrane package closed / sealed when unused. Store, handle and process the membrane in a clean and dust-free area. Use only new and sharp knives or blades, when cutting the membrane. Always wear protective gloves when handling the membrane. Handle with care, be sure not to puncture, crease or scratch the membrane, otherwise leaks will occur. All surfaces in contact with the membrane during handling, inspection, storage and mounting must be smooth and free of sharp projections.
Dry Form: Storage for long time scale (more than 12 months) may be done in dry state (sealed container).
Wet Form: Storage for short and medium time scale (hours up to several weeks) may be done in unsealed containers in 0.5 - 1.5 wt% NaCl solution or comparable neutral pH electrolytes. For storage over a longer time period a sealed container is recommended using afore said electrolyte with ca. 100 ppm biocide (NaN3) to avoid biological fouling.
The membrane is delivered in bromide form and dry form. Depending on application and cell design, assembling is possible in dry form (without pretreatment) or wet form. For optimum performance it is recommended to rinse the membrane in NaCl solution (e.g. 0.5 M NaCl solution at 25°C for 24 hrs) to remove any additive from the membrane. Place the membrane sample between stabilizing meshes / spacers in order to avoid curling. Do not let the membrane dry out since micro-cracks may likely occur during shrinkage.
If you have any concerns about storage, chemical stability and pretreatment before proceeding, please feel free to contact us for further information.
Please note that a current lead time of one to two weeks is to be expected.
|Membrane||Anion Exchange Membrane|
|Thickness||70 - 80 µm (microns)|
|Appearance / Color||Brown|
|Tensile Strength - max. (MPa)||50 - 60 MPa|
|Density||8.0 - 9.0 mg•cm-2|
|Non-Std Modulus (MPa)||1600 - 2100 MPa|
|Yield Strength at 23°C / 50 % R.H.||25 - 30 MPa|
|Elongation to Break (%)||15 - 25 %|
|Specific Area Resistance||1.2 - 2.0 Ω•cm2|
|Specific Conductivity||4.5 - 6.5 (in Cl- form) mS•cm-1|
|Counter Ion||Bromide (Br-)|
|Ion Exchange Capacity||1.2 - 1.4 meq•g-1|
|Selectivity||94 - 97 %|
|Uptake in H2O at 25°C||15 - 25 wt %|
|Dimensional Swelling in H2O at 25°C||0 - 2 %|
|Proton Transfer Rate||1200 - 1900 µmol•min-1•cm-2|
|Bubble Point Test in Water at 25°C||> 3 bar|
|pH Stability Range at 25°C||0 - 8 pH|
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