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565067

Sigma-Aldrich

Nafion™ perfluorinated membrane

greener alternative

Nafion™ 324, reinforced with poly(tetrafluoroethylene) fiber, thickness 0.006 in.

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Linear Formula:
(C7HF13O5S . C2F4)x
CAS Number:
31175-20-9
MDL number:
MFCD00132790
UNSPSC Code:
26111700
NACRES:
NA.23

eq. wt.

1100 2nd membrane
1500 1st membrane

manufacturer/tradename

Nafion™ 324

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

L × W

12 in. × 12 in.

thickness

0.006 in.

solubility

H2O: insoluble

greener alternative category

, Enabling

InChI

1S/C7HF13O5S.C2F4/c8-1(9)2(10)24-5(15,16)3(11,4(12,13)14)25-6(17,18)7(19,20)26(21,22)23;3-1(4)2(5)6/h(H,21,22,23);

InChI key

FOYUGSIADQEOEK-UHFFFAOYSA-N

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General description

The product is a ′bimembrane′ with one layer having equivalent weight 1,500 and thickness 0.001in., and the other layer having equivalent weight 1,100 and thickness 0.005in.
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Find details here.

Application

Nafion™ perfluorinated membrane is mainly used as a proton exchange membrane (PEM) for fuel cell applications. It can also be used as a membrane for lithium isotope separation, which can be further be utilized as a fuel for fusion reactors. It has excellent chemical stability and high cationic conductivity. It finds potential usage in batteries and sensors.
Surface that is shiny and smooth must be installed facing the cathode.
Nafion™ is a perfluorinated ion-exchange membrane which has a wide variety of commercial uses. The acidic (hydrogen ion) form and derivatives are solid, superacid catalysts useful in a wide variety of synthetic applications.

Packaging

Darkening/browning is common for pieces stored in a general room environment for an extended period of time (several months), due to organics pick-up. Verify product is kept sealed during storage.
· Keep pieces sealed and protected from general exposure will reduce the effect. Recommend long term storage in air-tight bags.
· Discoloration does not affect performance and can be removed by soaking in dilute nitric acid.
Packaged in a heat-sealed foil bag in stay-flat mailers.

Legal Information

Nafion is a trademark of The Chemours Company FC, LLC

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Certificates of Analysis (COA)

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Relationship between ionic conductivity of perfluorinated ionomeric membranes and nonaqueous solvent properties
Doyle M, et al.
Journal of Membrane Science , 184(2), 257-273 (2001)
Nafion perfluorinated membranes in fuel cells
Banerjee S and Curtin DE
Journal of Fluorine Chemistry, 125(8), 1211-1216 (2004)
High-efficiency technology for lithium isotope separation using an ionic-liquid impregnated organic membrane
Hoshino T and Terai T
Fusion Engineering and Design, 86(9-11), 2168-2171 (2011)
Min-Ho Park et al.
Advanced materials (Deerfield Beach, Fla.), 27(29), 4308-4314 (2015-06-24)
A novel flexible encapsulation method (Flex Lami-capsulation) is reported, which can be applied in the roll-to-roll process for mass production of organic electronic devices. Flex Lami-capsulation is very simple, fast, and getter-free, and is as effective as glass encapsulation. Use

Articles

Materials in Polymer Electrolyte Membrane Fuel Cells

Polymer electrolyte membrane (PEM) fuel cells offer high efficiency and low-temperature operation, reducing oil use in light-duty vehicle transportation.

Proton Exchange Membrane (PEM) Fuel Cells

Proton exchange membrane (PEM) fuel cells operate at relatively low temperatures and are composed of two electrodes and a conductive elecrolyte.

Perfluorosulfonic Acid Membranes for Fuel Cells

Advances in electrochemical water conversion and understanding PEMFC degradation drive progress in hydrogen technologies.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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