Merck
All Photos(1)

802557

Sigma-Aldrich

Aquivion® D98-25BS

liquid, dispersion, 25% in water, PFSA eq. wt. 980 g/mole SO3H, contains CF3 polymer chain ends as stabilizer

Synonym(s):
Aquivion® SO3H-form, Tetrafluoroethylene-perfluoro(3-oxa-4-pentenesulfonic acid) copolymer, Ethanesulfonic acid
Linear Formula:
(C4HF7O4S .C2F4)x
NACRES:
NA.23

Quality Level

form

dispersion
liquid

eq. wt.

980±40g/mole (SO3H)

contains

CF3 polymer chain ends as stabilizer

composition

25% in water

concentration

25±1 % (w/w)

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General description

Aquivion® PFSA dispersions are based on the short-side-chain (SSC) copolymer of Tetrafluoroethylene and the Sulfonyl Fluoride Vinyl Ether (SFVE) CF2=CF2-O-(CF2)2-SO2F industrially produced by Solvay Specialty Polymers. The resulting perfluoropolymer′s functional groups are in their sulfonic acid form, SO3H.

Application

Can be used as a formulation additive for production of polymer electrolyte fuel cell electrodes, manufacture or repair of cation-exchange membranes, surface coatings of PTFE membranes to improve their wetting behavior or for the development of superacid catalysts. Addition of further film-forming and/or other volatile or non-volatile chemicals is necessary to impart the desired processing and end-product characteristics.

Packaging

25, 250 mL in poly bottle

Legal Information

Aquivion is a registered trademark of Solvay Group

Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1C

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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