Fluoro sulfonic acid

Engineered for critical processes: ultra-strong acidity, superior sulfonation and fluorination power for peak efficiency.

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Product Description

Experience the unrivalled power of LANXESS Fluoro sulfonic acid—a superacid engineered for the most demanding industrial environments. Its extreme acidity and high SO₃ reactivity accelerate complex chemical syntheses with unmatched efficiency and precision. Backed by certified handling protocols and robust safety measures, it ensures compliant, secure supply every time. Trusted by technical experts, it’s the go to solution for advanced applications requiring peak performance and specialist support.

THESE SPECIAL FEATURES MAKE THIS PRODUCT SO SUCCESSFUL

Superacid strength (pKa ≈ –10) — significantly stronger than sulfuric acid, ideal for demanding reactions
High SO₃ / fluorine reactivity — exceptional sulfonation, dehydration, and fluorination catalyst
Specialized handling — fuming liquid shipped in corrosion resistant containers under strict safety protocols
Industrial grade purity — low impurities ensure reproducible, high precision results
B2B compliance support — comprehensive documentation, regulatory guidance, and expert consultation

THE MOST COMMON AREAS OF APPLICATION

Organic synthesis — key in sulfonation, nitration, fluorination, and dehydration reactions
Polymer chemistry — catalyst for polymerisations and specialty fluoropolymer development
Advanced material science — surface etching and functionalization in semiconductor and coating tech
Petrochemical processes — catalyses hydrofluorination and alkylation in high-performance feedstocks
Etching & refining — for glass etching and clean-up of complex organic residues

Molecular Formula

F H O3 S

Molar weight

100

CAS (CAS Number)

7789-21-1

Chemical synthesis

Glass industry

Catalyst for chemical synthesis

Fluoro sulfuric acid

Fluoro sulfonic acid

HSO3F

Sulfuric acid fluoride

Sulfuric acid mono fluoride

THAT'S WHY LANXESS

As a leading specialty chemicals company, we offer much more than high-quality products: we stand for reliability, innovative strength and partnership-based thinking. But you are at the centre of everything we do: our customers. Our customers benefit from tailor-made solutions, global presence and a deep understanding of their markets. Discover eleven compelling reasons why LANXESS is the right partner for your business.