Description

Potassium Benzenesulfonate is an important organic salt widely used as a versatile intermediate and additive in industrial synthesis. Its primary value lies in its role as a phase-transfer catalyst and a source of the benzenesulfonate anion for various chemical transformations. This compound is essential for manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors seeking reliable raw materials for synthesis and formulation processes.

Application

• Phase-Transfer Catalyst (PTC): Facilitates reactions between reagents in immiscible phases, commonly used in alkylation, esterification, and polymerization processes.
• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs) and other fine chemicals.
• Surfactant & Detergent Component: Used in the formulation of anionic surfactants and industrial cleaning agents.
• Electroplating Additive: Functions as a brightening agent and conductivity salt in electroplating baths.
• Polymerization Aid: Acts as an emulsifier or stabilizer in the production of certain polymers and resins.
• Chemical Synthesis Reagent: Provides a source of the benzenesulfonate group for nucleophilic substitution and other organic reactions.
• Research & Development: Employed in laboratory-scale research for method development and novel compound synthesis.

Basic Information

Product Name	Potassium Benzenesulfonate
CAS No.	934-55-4
Molecular Formula	C6H5KO3S
Molecular Weight	196.27 g/mol
Synonyms	Benzenesulfonic acid, potassium salt; Potassium phenylsulfonate; Benzenesulfonate potassium; Kaliumbenzolsulfonat; Phenylsulfonic acid potassium salt; Benzene sulfonic acid potassium salt; KS
EINECS	213-322-3

Quality Control

Our Potassium Benzenesulfonate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product quality and handling.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Chloride (Cl)	≤ 0.1%
Sulfate (SO4)	≤ 0.1%
pH (5% solution)	6.0 - 8.0

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