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CMI-7000 Cation Exchange Membranes

Technical Specifications

Technical  Specification CMI-7000S
Single Sheet
Functionality Strong Acid Cation Exchange Membrane
Polymer Structure Gel polystyrene cross linked with divinylbenzene
Functional Group Sulphonic Acid
Ionic Form as Shipped Sodium
Color Brown
Standard Size : US
  : Metric
48in x 120in
1.2m x 3.1m
Standard Thickness(mils)
(mm)
 18±1
0.45±0.025
Electrical Resistance (Ohm.cm2)
0.5 mol/L NaCl		 <30
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

Membranes should be preconditioned by emersion in a salt solution or a solution similar  to that of the intended application for several hours to allow for membrane expansion. 

All information described in this bulletin is based upon tests and data believed to be reliable. It is the user's responsibility to determine performance and suitability of the products. No guarantee, expressed or implied, is made by Membranes International Inc., nor does Membranes International Inc. assume any liability for patent infringement arising from the use of these products.

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