Description

Fluoroantimonic Acid Hexahydrate is a superacid of exceptional strength, renowned as one of the most powerful proton donors known. This extreme acidity makes it a critical catalyst and reagent in demanding organic synthesis and petrochemical processes where milder acids are ineffective. It is essential for research and industrial applications in advanced material science, specialty chemical manufacturing, and as a potent fluorinating agent.

Application

• Superacid Catalyst in alkylation, acylation, and isomerization reactions within petrochemical refining and fine chemical synthesis.
• Fluorination Agent for introducing fluorine atoms into organic molecules in pharmaceutical and agrochemical intermediate production.
• Research & Development tool for studying carbocation chemistry and stabilizing reactive cationic intermediates in academic and industrial labs.
• Protonation Medium for very weak bases in analytical chemistry and material characterization.
• Electrolyte Component in specialized electrochemical systems and fuel cell research.
• Etching and Surface Activation agent in the microelectronics and semiconductor industries for specific substrate treatments.

Basic Information

Product Name	Fluoroantimonic Acid Hexahydrate
CAS No.	72121-43-8
Molecular Formula	H3F6Sb • 6H2O or HSbF6 • 6H2O
Molecular Weight	315.82 g/mol (Hexahydrate)
Synonyms	Hexafluoroantimonic Acid Hexahydrate; Antimony Hexafluoride Hydrate; Hydrogen Hexafluoroantimonate(V) Hydrate; Fluoroantimonic(V) Acid; Magic Acid (component); HSbF6 • 6H2O; Fluoronium Antimonate
EINECS	Contact for details

Quality Control

Our Fluoroantimonic Acid Hexahydrate is manufactured and handled under stringent controls to ensure batch-to-batch consistency and high chemical purity. Quality is verified through a suite of analytical techniques including titration for acid strength and spectroscopic methods for identification and impurity profiling. A Certificate of Analysis (COA) detailing specific results for each lot is provided to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area, away from incompatible materials such as bases and organic compounds. Due to its nature as a strong acid/organic solvent, containers must be kept tightly sealed and constructed from compatible, corrosion-resistant materials. Recommended storage temperature: 2-8°C (under refrigeration) for extended stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR / NMR)	Conforms to structure
Assay (as HSbF6)	Min. 98.0%
Water Content (Karl Fischer)	Corresponds to hexahydrate stoichiometry
Free Hydrofluoric Acid (HF)	Max. 1.0%
Chloride (Cl)	Max. 0.01%
Sulfate (SO4)	Max. 0.01%

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