Description

Fluorosulfonic Acid CAS NO 7789-21-1 is a powerful superacid and versatile fluorinating agent, essential for demanding chemical synthesis and industrial processes. Its exceptional reactivity and ability to act as a catalyst or reagent make it a critical component for creating high-value specialty chemicals. This product is primarily needed by manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors for alkylation, acylation, and the production of fluorinated compounds.

Application

• Catalyst in Organic Synthesis: Used as a highly effective catalyst for Friedel-Crafts alkylation and acylation reactions.
• Fluorinating Agent: Key reagent for introducing fluorine atoms into organic molecules in pharmaceutical and agrochemical intermediates.
• Electrolyte Component: Employed in the formulation of specialized electrolytes for high-energy batteries and electrochemical applications.
• Polymerization Initiator: Serves as an initiator or co-catalyst in the production of certain specialty polymers and plastics.
• Laboratory Reagent: Utilized in research and development for analytical procedures and novel compound synthesis.
• Chemical Intermediate: Used in the manufacture of other sulfur-fluorine compounds and fine chemicals.

Basic Information

Product Name	Fluorosulfonic Acid
CAS No.	7789-21-1
Molecular Formula	FHO3S
Molecular Weight	100.07 g/mol
Synonyms	Fluorosulfuric Acid; Sulfurofluoridic Acid; Fluosulfonic Acid; Fluorosulphonic Acid; FSO3H; Acidum fluosulfuricum; Fluoridosulfonic acid
EINECS	232-149-4

Quality Control

Our Fluorosulfonic Acid is manufactured under stringent quality management systems to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including assay by titration and impurity profiling, to meet exacting customer specifications. Certificates of Analysis (COA) documenting purity, identity, and key physical properties are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases, organic compounds, and metals. Due to its nature as a strong acid/organic solvent and its reactivity with fluorides/strong alkalis, containers must be kept tightly sealed and clearly labeled. Recommended storage temperature is 15-25°C.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
Water Content (KF)	≤ 0.5 %
Sulfuric Acid	≤ 1.0 %
Hydrofluoric Acid	≤ 0.5 %
Density at 20°C	1.72 - 1.74 g/mL

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