Description

Aquivion(R) D79-25Bs-Li Liquid Dispersion, 25% In Water, Pfsli Eq. Wt. 790 G/Mole So3Li, Stabilized Cf3 Polymer Chain Ends is a high-performance, stabilized perfluorosulfonic acid (PFSA) ionomer dispersion in the lithium sulfonate form. This advanced material is engineered for applications requiring exceptional chemical stability, proton conductivity, and film-forming properties from a liquid precursor. It is a critical component for researchers and manufacturers developing next-generation electrochemical devices and specialty coatings. The CAS number for this compound is 1687740-67-5.

Application

• Catalyst Coating for Fuel Cells and Electrolyzers: Used as a proton-conductive ionomer binder within catalyst layers for Proton Exchange Membrane (PEM) fuel cells and water electrolyzers.
• Advanced Membrane Fabrication: Serves as a precursor for casting high-performance, reinforced, or composite ion-exchange membranes with tailored properties.
• Functional Coatings: Applied to create thin, conductive, and chemically resistant films on electrodes, sensors, and other substrates.
• Research & Development: A key material for academic and industrial R&D in electrochemistry, energy storage, and separation technologies.
• Additive for Electrolytes: Incorporated into specialized electrolyte formulations to enhance ionic conductivity and mechanical stability.
• Component in Chemical Sensors: Utilized in the fabrication of ion-selective or humidity-sensitive sensor elements.

Basic Information

Product Name	Aquivion(R) D79-25Bs-Li Liquid Dispersion, 25% In Water, Pfsli Eq. Wt. 790 G/Mole So3Li, Stabilized Cf3 Polymer Chain Ends
CAS No.	1687740-67-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Aquivion D79-25BS Li; Perfluorosulfonic Acid-PTFE Copolymer (Li salt) Dispersion; PFSA Li+ Dispersion; Short Side Chain (SSC) PFSA Ionomer Dispersion; Lithium Perfluorosulfonate Ionomer Dispersion; 3M Ionomer Dispersion; Stabilized PFSA-Li Dispersion; Ionomer Binder Dispersion
EINECS	Contact for details

Quality Control

Our Aquivion(R) D79-25Bs-Li Liquid Dispersion is manufactured under strict quality systems. Each batch is characterized to ensure consistency in critical parameters such as equivalent weight, solids content, particle size, and ionic form. Certificates of Analysis (COA) detailing lot-specific results are available upon request to support your quality assurance and R&D processes.

Storage

Preserve in a tightly closed container, protected from light. Store at room temperature (15-25°C). Do not freeze. This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to prevent evaporation of water and contamination.

Specification

Item	Specification
Appearance	Milky white to translucent liquid dispersion
Solid Content	~25% w/w in water
Equivalent Weight (SO3Li)	790 g/mole
Ionic Form	Lithium (Li+)
Polymer Chain Ends	Stabilized -CF3
pH	Contact for details
Particle Size (D50)	Contact for details
Viscosity	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.