Description

Potassium Nitrosodisulfonate is a powerful and versatile oxidizing agent, also known as Fremy's salt, with the CAS number 14293-70-0. Its unique nitrosodisulfonate radical anion structure makes it a critical reagent for selective oxidation reactions in organic synthesis and polymer chemistry. This high-purity chemical is essential for research and industrial applications in pharmaceuticals, advanced material science, and specialty chemical manufacturing.

Application

• Organic Synthesis: A key reagent for the selective oxidation of phenols to quinones and for the generation of stable free radicals in complex molecule construction.
• Polymer Chemistry: Used as an initiator or mediator in controlled radical polymerization processes, such as nitroxide-mediated polymerization (NMP).
• Pharmaceutical Intermediates: Employed in the synthesis of specific drug precursors and active pharmaceutical ingredients (APIs) requiring controlled oxidative steps.
• Electron Paramagnetic Resonance (EPR) Spectroscopy: Serves as a standard and spin-trapping agent in analytical and research laboratories.
• Material Science Research: Utilized in the development of novel conductive polymers, organic semiconductors, and other functional materials.
• Water Treatment Research: Investigated for its potential in advanced oxidation processes for contaminant degradation.

Basic Information

Product Name	Potassium Nitrosodisulfonate
CAS No.	14293-70-0
Molecular Formula	K2NO(SO3)2
Molecular Weight	268.33 g/mol
Synonyms	Fremy's Salt; Dipotassium Nitrosodisulfonate; Potassium Nitrodisulfonate; ON(SO3K)2; Nitrosodisulfonic Acid Dipotassium Salt
EINECS	238-199-1

Quality Control

Our Potassium Nitrosodisulfonate is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high chemical purity. We provide comprehensive Certificates of Analysis (COA) for every lot, detailing key parameters such as assay, identity, and impurity profiles. Our quality management system is designed to meet the stringent requirements of research and industrial applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and easily oxidized; prolonged exposure to air and moisture should be avoided to maintain stability and efficacy.

Specification

Item	Specification
Appearance	Pale yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 98.0 %
Water Content (KF)	≤ 2.0 %
Solubility	Soluble in water

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