Description

Dipotassium 3,3'-Sulphonylbis(Benzenesulphonate) is a high-purity, water-soluble organic salt widely used as a key intermediate in specialty chemical synthesis. This compound is valued for its role in producing high-performance materials, particularly in advanced polymer systems. It is primarily sought by manufacturers in the chemical, pharmaceutical, and material science industries for research and production applications. The product is supplied with a CAS number of 63316-33-6.

Application

• Polymer Synthesis: A crucial monomer or chain extender in the production of high-performance polyarylethersulfones (PAES) and other specialty engineering plastics.
• Pharmaceutical Intermediates: Serves as a building block in the synthesis of active pharmaceutical ingredients (APIs) and other fine chemicals.
• Dye and Pigment Manufacturing: Used in the synthesis of sulfonated dyes and pigments to enhance water solubility and color fastness.
• Ion-Exchange Resins: Acts as a functional monomer in the manufacture of sulfonated ion-exchange resins for water treatment and catalysis.
• Electrolyte Additives: Investigated for use as an additive in electrolyte formulations for advanced battery systems.
• Crosslinking Agent: Employed in the formulation of coatings, adhesives, and composites that require specific thermal or chemical resistance.

Basic Information

Product Name	Dipotassium 3,3'-Sulphonylbis(Benzenesulphonate)
CAS No.	63316-33-6
Molecular Formula	C12H8K2O10S3
Molecular Weight	518.59 g/mol
Synonyms	Dipotassium 4,4'-Sulfonyldibenzenesulfonate; 3,3'-Sulfonylbis[benzenesulfonic acid] dipotassium salt; Bis(3-sulfophenyl) sulfone dipotassium salt; 4,4'-Dihydroxydiphenyl sulfone-3,3'-disulfonic acid dipotassium salt; Dipotassium BPS (Bisphenol S disulfonate); BPS-DK; BPS-DPS Dipotassium Salt; Dipotassium sulfonyldibenzenesulfonate
EINECS	Contact for details

Quality Control

Our Dipotassium 3,3'-Sulphonylbis(Benzenesulphonate) is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for use in sensitive applications. Certificates of Analysis (COA) are provided with every shipment and are available upon request.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.5%
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.