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915769

Sigma-Aldrich

Nafion™ perfluorinated membrane

Nafion™ 117, thickness × L × W 0.007 in. × 0.61 m × 2.5 m, sheet

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Linear Formula:
(C7HF13O5S . C2F4)x
CAS Number:
31175-20-9
MDL number:
MFCD00132790
UNSPSC Code:
60104509

form

sheet

eq. wt.

1,100

manufacturer/tradename

Nafion™ 117

thickness × L × W

0.007 in. × 0.61 m × 2.5 m

solubility

H2O: insoluble
H2O: insoluble

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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Application

Nafion™ membrane may be used in the fabrication of electrodes by dry plasma.As a proton exchange membrane Nafion™ has been the focus of considerable efforts to develop improved fuel cells.
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.
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.
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.

Legal Information

Nafion is a trademark of The Chemours Company FC, LLC

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Study of Self-Diffusion of Monovalent and Divalent Cations in Nafion-117 Ion-Exchange Membrane.
Goswami A, et al.
The Journal of Physical Chemistry B, 105(38), 9196-9201 (2001)
Influence of temperature and humidity on the mechanical properties of Nafion 117 polymer electrolyte membrane
Bauer F, et al.
Journal of Polymer Science. Part B, Polymer Physics, 43(7), 786-795 (2005)
Materials Issues in Polymer Electrolyte Membrane Fuel Cells.
Nancy L G, et al.
Material Matters (2008)
Ion mobility in Nafion-117 membranes.
Stenina I A, et al.
Desalination, 170(1), 49-58 (2004)
State of understanding of nafion.
Kenneth A Mauritz et al.
Chemical reviews, 104(10), 4535-4585 (2005-01-27)
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