AGC Engineering Co., Ltd.

What is an ion-exchange membrane?

Ion-exchange membrane SELEMIONTM

SELEMIONTM is a hydrocarbon-based ion-exchange membrane developed and manufactured by AGC Engineering. Since we pioneered in developing ion-exchange membranes in 1950, we have been working to develop new membranes to expand both our product lineup and the potential of ion exchange membrane technology. SELEMION™ is an organic polymer materials molded into a sheet. Both cation-exchange membranes and anion-exchange membranes are available.

Table of membrane types

Cation-exchange membranes
Product name CMVN CMTE HSF CMF
Characteristic Standard High Strong Hydrogen ions
Selective
High durability
Usage Electrodialysis Electrodialysis Electrodialysis Electrodialysis
Thickness μm 100 220 150 440
Counterion Na+ Na+ H+ H+
Burst strength kPa 200 1150 200 1000
Resistance 0.5mol/L NaCl Ωcm2 2.0 4.2 19 2.5
Transport number t-Na+ >0.97 >0.94 >0.97
t-Na+
Certification 1935/2004/
EC;10/2011
Anion-exchange membranes
Product name AMVN DSV AAV ASVN AHO
Characteristic Standard Low resistance Low proton leakage Monovalent-ion-selective High temp. resistance
Alkali-proof
Usage Electrodialysis Diffusion dialysis Electrodialysis Electrodialysis Electrodialysis
Thickness μm 100 95 120 100 300
Counterion Cl- Cl- SO42- Cl- Br-
Burst strength kPa 250 150 300 200 1200
Resistance 0.5mol/L NaCl Ωcm2 2.0 1.1 6.4 4.0 20
Transport number t-Na+
t-Na+ >0.95 >0.95 >0.95 >0.95
Certification 1935/2004/
EC;10/2011

*The data published in this catalog are subject to change without notice.
*The data provided in these tables are for reference only and are not guaranteeed.

SELEMION™ : Standard Sizes

  • SELEMIONTM is sold in four sizes: 16 × 28, 18 × 55, 55 × 112, and 112 × 112 cm.
  • It is available in quantities of one or more sheets.