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Merck
모든 사진(1)

주요 문서

802573

Sigma-Aldrich

Aquivion® D79-25BS-Li

greener alternative

liquid dispersion, 25% in water, PFSLi eq. wt. 790 g/mole SO3Li, stabilized CF3 polymer chain ends

동의어(들):

Aquivion® SO3Li, Tetrafluoroethylene-perfluoro(3-oxa-4-pentenesulfonic acid) copolymer, Ethanesulfonic acid

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About This Item

Linear Formula:
(C4F7SO4Li)x . (C2F4)y
CAS Number:
UNSPSC 코드:
26111700
NACRES:
NA.23

Quality Level

형태

dispersion

eq. wt.

790 g/eq±20 g/eq SO3Li

환경친화적 대안 제품 특성

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

sustainability

Greener Alternative Product

농도

25 wt. % in water

환경친화적 대안 카테고리

일반 설명

Aquivion® D79-25BS-Li is a dispersion 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 lithium sulfonate form, SO3Li. Aquivion® D79-25BS-Li is delivered as a colloidal dispersion in highly pure deionized water. It contains the perfluoropolymer′s neutral lithium salt form (R-SO3Li) of low equivalent weight (EW) 790 g/mole SO3H at very high solid content of 25 % by weight which allows a large variety of subsequent formulations without additional pre-concentration steps. D79-25BS-Li contains "chemically stabilized" perfluoropolymer in which a large amount of polymer end groups are converted to their inert "CF3" configuration.
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 and is intended for use as Proton Exchange Membrane (PEM) Fuel Cells. Click here for more information.

애플리케이션

Once formulated with solvents Aquivion® D79-25BS-Li can be used for the preparation of cast films or membranes, of coatings on various substrates. Formulations with volatile and non-volatile additives to make components for electrochemical devices are another possible way of using D79-25BS-Li.

제조 메모

Store product near room temperature and keep away from sources of radiation (UV, IR) or ignition. Do not freeze. Agitate and eventually sonicate prior to use.

법적 정보

Aquivion is a registered trademark of Syensqo Group

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable


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문서

Advances in the electrochemical conversion of water to and from hydrogen and oxygen have principally been achieved through the development of new materials and by understanding the mechanisms of the degradation of proton exchange membrane fuel cells (PEMFC) during operation.

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