What is an ion-exchange membrane?
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- FORBLUE SELEMION™
- 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 | ||||||
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Product name Click heading (product name) to display photo | ||||||
Characteristic | Standard | High Strong | Hydrogen ions Selective |
High durability | ||
Usage | Electrodialysis | Electrodialysis | Electrodialysis | Electrodialysis | ||
Thickness | μm | 100 | 220 | 160 | 440 | |
Counterion | Na+ | Na+ | H+ | H+ | ||
Burst strength | kPa | 200 | 1150 | 550 | 1000 | |
Resistance | 0.5mol/L NaCl | Ωcm2 | 2.0 | 4.0 | 25 | 2.5 |
0.25mol/L H2SO4 | Ωcm2 | 0.9 | ||||
Transport number | t-Na+ | >0.95 | >0.94 | >0.95 | ||
t-Cl- | ||||||
Certification | EC_1935/2004 |
Anion-exchange membranes | |||||||
---|---|---|---|---|---|---|---|
Product name Click heading (product name) to display photo | |||||||
Characteristic | Standard | Low resistance | Low proton leakage | Monovalent-ion-selective | High temp. resistance Alkali-proof |
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Usage | Electrodialysis | Diffusion dialysis | Electrodialysis | Electrodialysis | Electrodialysis | ||
Thickness | μm | 100 | 95 | 120 | 120 | 300 | |
Counterion | Cl- | Cl- | SO42- | Cl- | Br- | ||
Burst strength | kPa | 250 | 150 | 550 | 200 | 1200 | |
Resistance | 0.5mol/L NaCl | Ωcm2 | 2.0 | 0.8 | 4.0 | 20 | |
0.25mol/L H2SO4 | Ωcm2 | 1.2 | 25 | ||||
Transport number | t-Na+ | ||||||
t-Cl- | >0.95 | >0.95 | >0.95 | >0.95 | |||
Certification | EC_1935/2004 |
*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.