fumasep® FAB-PK-75/130 Anion Exchange Membrane

fumasep® FAB-PK-75/130 Anion Exchange Membrane - Image 2

fumasep® FAB-PK-75/130 Anion Exchange Membrane - Image 3

fumasep® FAB-PK-75/130 Anion Exchange Membrane - Image 4

fumasep® FAB-PK-75/130 Anion Exchange Membrane

Price range: 35.00 € through 185.00 €

The fumasep® FAB-PK-75/130 is a PK-reinforced anion exchange membrane with high proton-blocking capability, high selectivity (>92–93%) and full pH stability (0–14), available in 75 µm and 130 µm for electrodialysis and bipolar membrane electrodialysis.

Read more about the product

Nominal dry thickness

Size

Package

Clear

▲ ▼

About the product

The fumasep® FAB-PK is a PK (polyketone)-reinforced anion exchange membrane from Fumatech, designed for electrodialysis (ED) and electrodialysis with bipolar membranes (EDBM). It blocks protons very effectively, making it the membrane of choice for acid production and concentration, where proton leakage through the anion exchange membrane would otherwise reduce current efficiency.

It comes in two thicknesses. The 75 µm version has the lower area resistance (<5 Ω·cm²) for better energy efficiency. The 130 µm version (<7.5 Ω·cm²) offers slightly higher selectivity (>93% vs >92%) and extra robustness for stacks and long-term operation. Area resistance is measured in Cl⁻ form in 0.5 M NaCl at 25 °C. The PK reinforcement keeps both versions dimensionally stable in the x/y-direction.

The membrane is supplied dry, in bromide (Br⁻) form, and can be cut in the dry state. Before use, condition it in 0.5–1 M NaCl solution at ambient temperature until equilibrated, keeping it fully immersed. Avoid surfactants, organic substances and oxidants.

Both versions are stable across pH 0–14 at 25 °C, with an operating temperature range of 15–40 °C.

Main application area: ED and EDBM; acid production/concentration with high proton-blocking capability.

Property	Unit	FAB-PK-75	FAB-PK-130
Membrane type		Anion exchange membrane	Anion exchange membrane
Appearance		Brown	Brown
Reinforcement		PK (polyketone)	PK (polyketone)
Counter ion		Bromide (Br⁻)	Bromide (Br⁻)
Delivery form		Dry	Dry
Thickness (dry)	µm	60 – 90	110 – 150
Area resistance in Cl⁻ form in 0.5 M NaCl at T = 25 °C	Ω cm²	< 5	< 7.5
Permselectivity 0.1 / 0.5 M KCl at T = 25 °C	%	> 92	> 93
pH stability range at T = 25 °C	pH	0 – 14	0 – 14
Operational temperature range	°C	15 – 40	15 – 40

Technical Datasheet fumasep® FAB-PK-75/130

Support & Inquiry

Do you have specific questions or would you like help in selection and configuration of our product:

fumasep® FAB-PK-75/130 Anion Exchange Membrane

You are very welcome to contact us in the form here. We are ready to support you in selecting the best solutions for your R&D.

Always include as much information as you can about your project, what type of chemistry you are planning to use, what is the purpose of the equipment you are interested in. That will make it much easier for us to guide you towards the best solution for your project.