Reinforced Cation-Exchange Membrane (NEXIONIC C450R) for Electrodialysis and Electrodeionization, CEERCEMC450R
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The NEXIONIC® C450R is a high-performance, reinforced cation exchange membrane designed for demanding industrial and laboratory applications. It is a "strong-acid" type membrane containing sulfonic acid (-SO3^-) functional groups. Unlike thin, non-reinforced membranes, the C450R is specifically engineered for mechanical stability and longevity in systems with high current densities or aggressive physical conditions.
It is composed of heterogeneous backbone (resin particles in a polymer matrix) and functional group of strong-acid cation (-SO3^-). Due to its reinforcement and thickness, the C450R is preferred for "heavy-duty" electrochemical processes: (1) Electrodialysis (ED/EDR): Used in industrial desalination and wastewater polishing where high hydraulic pressure or frequent cleaning is required. (2) Electrodeionization (EDI): Serving as the cation-selective barrier in ultrapure water production stacks. (3) Electrophoretic Painting or Electroplating: Used in automotive and industrial paint baths to maintain bath chemistry by removing unwanted ions. (4) Flow Battery Systems: Employed in certain flow batteries or specialized energy storage systems where a robust separator is needed to prevent electrode contact. (5) Metal Recovery: Used in electroplating and mining wastewater treatment to selectively recover metal cations.
| Part Number | CEERCEMC450R (C-EE-RCEM-C450R) |
| Ion Type | Cation (–SO₃⁻) |
| Reinforcement | Polypropylene (PP) Mesh |
| Thickness (um) | 450 |
| Ion Exchange Capacity (meq/g) | ~1.6 |
| Area Resistance (Ω·cm² in NaCl) | <30 |
| Operating pH | 1-10 |
| Operating Temperature | < 70 °C is recommended |
| Pre-treatment Required | NaCl 72h soak |
| Primary Applications | Electrodialysis, Electrodeionization, Electroplating |
| Package Grade | 10cm*10cm/pcs/pack (other sheet size of 20cm*20cm, 30cm*30cm, 40cm*40cm also can be supplied upon request) |
Use Note:
The NEXIONIC® C450R is a "dry" Na+ form and requires proper activation before it becomes ionically conductive.
(1) Activation Soak: Soak the membrane in 0.5 M NaCl (or a 5% NaCl solution) for 24 to 72 hours at room temperature.
(2) Wrinkle Removal: It is normal for the dry membrane to appear slightly wavy; it will flatten out completely after full hydration.
(3) Storage: For dry form, it can be stored in a sealed, dark environment away from UV light. If it has been already hydrated, store in a 0.5–1.5% NaCl solution. For long-term wet storage, add 1–3% Sodium Sulfite (Na2SO3) to prevent biological growth.