• CMI-7000 Cation Exchange Membrane

Membranes International CMI 7000 cation exchange membrane (proton exchange membrane, PEM) technical specifications:


Functionality

Strong Acid Cation Exchange Membrane

Polymer Structure

Gel polystyrene cross linked with divinylbenzene

Functional Group

Sulphonic Acid

Ionic Form as Shipped

Sodum

Color

Brown

Thickness (mm)

0.45±0.025

Electrical Resistance (Ohm.cm2)
0.5 mol/L NaCl

<30

Maximum Current Density (Ampere/m2)

<500

Permselectivity (%)
0.1 mol KCl/kg / 0.5 mol KCl/kg

94

Total Exchange Capacity (meq/g)

1.6±0.1

Water Permeability
(ml/hr/ft2) @5psi

<3

Mullen Burst Test strength (psi)

>80

Thermal Stability (oC)

90

Chemical Stability Range (pH)

1-10

Preconditioning Procedure

Immerse the membrane in either the application solution or a 5% NaCl solution for 12 hours to allow for membrane hydration and expansion.

Storage

Store at room temperature and low humidity in sealed air tight container. Storage period not to exceed one year.

These membranes come in standard size sheets of min. 15 x 15 cm. Customized sizes are available on request.

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CMI-7000 Cation Exchange Membrane

  • 29.00€

  • Ex Tax: 25.00€

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Tags: CMI-7000, cation exchange membrane, proton exchange membrane, PEM, polystyrene, sulphonic acid, fuel cell, electrolysis cell, Membranes International