Description

Potassium Fluorosulfite is an inorganic salt with significant utility as a specialized fluorinating and sulfonating agent in advanced chemical synthesis. Its unique reactivity profile makes it a valuable precursor for introducing both fluorine and sulfur-containing functional groups into target molecules. This compound is essential for research and production in pharmaceutical intermediates, agrochemicals, and specialty materials where precise molecular modification is required.

Application

• Pharmaceutical Synthesis: Acts as a key reagent in the preparation of fluorinated and sulfonated active pharmaceutical ingredients (APIs) and intermediates.
• Agrochemical Manufacturing: Used in the synthesis of novel herbicides, pesticides, and fungicides that incorporate fluorine for enhanced efficacy and stability.
• Specialty Polymer Production: Serves as a monomer or modifying agent for creating polymers with specific surface or bulk properties, such as oil and water repellency.
• Organic Synthesis Reagent: Employed in laboratory and industrial-scale reactions for the controlled introduction of fluorosulfite groups into organic frameworks.
• Chemical Research & Development: A critical tool for medicinal chemistry and material science research exploring new fluorinated compounds.
• Catalyst and Ligand Preparation: Used in the synthesis of complex metal-organic catalysts and ligands for specialized chemical processes.

Basic Information

Product Name	Potassium Fluorosulfite
CAS No.	14986-57-3
Molecular Formula	KFSO3
Molecular Weight	138.16 g/mol
Synonyms	Potassium fluoro sulfonate; Potassium sulfurofluoridate; Fluorosulfurous acid potassium salt; Potassium fluorosulfonate(I); KFSO3; Potassium sulfurofluoridate(O); Potassium fluorooxidosulfate(1-)
EINECS	Contact for details

Quality Control

Our Potassium Fluorosulfite is manufactured under strict quality management protocols to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profiles, and moisture content. Our quality systems are designed to meet the rigorous demands of GMP and ISO standards for advanced chemical intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment. Keep away from incompatible materials such as strong acids and strong oxidizers.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (KFSO3)	≥ 98.0 %
Water Content (KF)	≤ 1.0 %
Heavy Metals (as Pb)	≤ 10 ppm
Chloride (Cl)	≤ 0.1 %
Sulfate (SO4)	≤ 0.5 %

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