Description

Neosepta Afs 4T is a specialized anion exchange membrane widely recognized for its robust performance in demanding electrochemical environments. Its core value lies in its exceptional chemical stability, particularly against strong alkalis and organic solvents, ensuring reliable operation and long service life. This product is essential for industries requiring precise ion separation and transport, such as electrodialysis for water treatment, electrolysis processes, and advanced battery technologies. The compound is identified by CAS No. 73020-34-5.

Application

• Electrodialysis (ED) and Electrodialysis Reversal (EDR): For desalination, concentration, and purification of process streams, brines, and wastewater.
• Chlor-Alkali Electrolysis: As a separator membrane in membrane cell processes for the production of chlorine and caustic soda.
• Electrolyte Purification & Recovery: In metal plating, mining, and chemical manufacturing to recover valuable acids, bases, or metals from spent electrolytes.
• Fuel Cells & Flow Batteries: Serving as the anion-conducting electrolyte membrane in various energy storage and conversion systems.
• Diffusion Dialysis: For the recovery of acids from pickling liquors and other metal treatment wastes.
• Electro-deionization (EDI): For producing high-purity water in the pharmaceutical, microelectronics, and power generation industries.
• Laboratory & Pilot-Scale Separations: Used in research and development for process development and feasibility studies.

Basic Information

Product Name	Neosepta Afs 4T
CAS No.	73020-34-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Afs-4T Membrane; Neosepta AF-4T; ASTOM AF-4T; Anion Exchange Membrane AF-4T; AEM AF-4T; Perfluorinated Anion Exchange Membrane; Strong Base Anion Exchange Membrane; 73020-34-5
EINECS	Contact for details

Quality Control

Every batch of Neosepta Afs 4T membrane is manufactured under strict quality management systems. Our products undergo rigorous quality testing to ensure compliance with industry standards for electrochemical performance, dimensional stability, and chemical resistance. Certificates of Analysis (COA) detailing key parameters such as ion exchange capacity, electrical resistance, and burst strength are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the membrane in its original protective packaging until use to prevent contamination, dehydration, or physical damage. Avoid exposure to extreme temperatures and direct sunlight.

Specification

Item	Specification
Appearance	Homogeneous membrane, typically yellowish
Thickness	Contact for details
Ion Exchange Capacity	≥ 1.0 meq/g (Typical)
Electrical Resistance	< 3.0 ω·cm² (in 0.5M NaCl)
Burst Strength	> 0.3 MPa
Chemical Stability	Stable in strong alkali and organic solvents
Water Content	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.