Aquivion® D79-25BS

About
Aquivion® D79-25BS is a chemically-stabilized (denoted by S-suffix) perfluorosulfonic acid (PFSA) ionomer dispersion that exhibits an Equivalent Weight (EW) of 790 g/eq. Polymer concentration is 25%. Solvent system is >99% water and is free of ethers. Aquivion® PFSA dispersions are based on the unique Short Side Chain copolymer of Tetrafluoroethylene (TFE) and Sulfonyl Fluoride Vinyl Ether (SFVE) F2C=CF-O-CF2CF2-SO2F produced by Solvay. The PFSA ionomer dispersions contain its acid form (-SO3H) and are available in various solvent systems, EWs and concentrations. These dispersions can be used to produce PEM fuel cell electrodes and electrochemical cell electrodes, to manufacture or repair ion exchange membranes, to produce super-acid catalysts, and for the surface treatment of PTFE membranes to improve wetting behavior. Please visit Aquivion.com for more information.&&

About

Aquivion® D79-25BS is a chemically-stabilized (denoted by S-suffix) perfluorosulfonic acid (PFSA) ionomer dispersion that exhibits an Equivalent Weight (EW) of 790 g/eq. Polymer concentration is 25%. Solvent system is >99% water and is free of ethers. Aquivion® PFSA dispersions are based on the unique Short Side Chain copolymer of Tetrafluoroethylene (TFE) and Sulfonyl Fluoride Vinyl Ether (SFVE) F2C=CF-O-CF2CF2-SO2F produced by Solvay. The PFSA ionomer dispersions contain its acid form (-SO3H) and are available in various solvent systems, EWs and concentrations. These dispersions can be used to produce PEM fuel cell electrodes and electrochemical cell electrodes, to manufacture or repair ion exchange membranes, to produce super-acid catalysts, and for the surface treatment of PTFE membranes to improve wetting behavior. Please visit Aquivion.com for more information.&&

Product Description
Supplier	Solvay
Generic	PFSA
Material Status	Commercial: Active
Availabilitys	North America,Asia Pacific,Europe

Technical Data
PHYSICAL	Nominal value	Unit	Test method
HSE/Transportation Classification	腐蚀性
equivalent
EW	790± 20	g/eq	Internal Method
Polymer concentration
nominal	25	%	TGA
Density
20℃	1.150	g/cm³	ASTM D1475
Solvent system
% w/w	水>99 %，无醚，化学稳定
viscosity
25℃	< 0.025	Pa·s	ASTM D2196
Total acidity	1.23 to 1.30	meq/g	Internal Method

FLAME CHARACTERISTICS	Nominal value	Unit	Test method
Under environmental conditions	否

Notes
1. Typical properties: these are not to be construed as specifications.
2. eq = mol SO3H
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