Description

Dipotassium 3,3'-Methylenebisnaphthalene-2-Sulphonate is a high-purity, water-soluble salt of a bisnaphthalene sulfonate derivative. This compound is valued for its role as a key intermediate and functional additive in advanced chemical synthesis and material science. It is primarily sought by manufacturers in the dye and pigment, polymer, and specialty chemical industries for applications requiring precise molecular structure and consistent performance.

Application

• Dye and Pigment Intermediate: Serves as a crucial building block in the synthesis of high-performance dyes, optical brighteners, and fluorescent pigments.
• Polymer Additive: Used as a functional monomer or additive to impart specific properties like solubility, stability, or ionic character to polymers and resins.
• Electroplating and Surface Treatment: Acts as a brightening agent or complexing agent in electroplating baths for metal finishing.
• Analytical Chemistry Reagent: Employed as a standard or reagent in analytical methods and research due to its defined structure.
• Pharmaceutical Synthesis: Functions as a specialized intermediate in the synthesis of certain active pharmaceutical ingredients (APIs).
• Paper and Textile Chemicals: Utilized in the formulation of specialty chemicals for paper coating or textile treatment processes.

Basic Information

Item	Detail
Product Name	Dipotassium 3,3'-Methylenebisnaphthalene-2-Sulphonate
CAS No.	63766-16-5
Molecular Formula	C₂₂H₁₂K₂O₆S₂
Molecular Weight	514.66 g/mol
Synonyms	Dipotassium 3,3'-methylenebis(2-naphthalenesulfonate); 3,3'-Methylenebis(2-naphthalenesulfonic acid) dipotassium salt; Bisnaphthalene sulfonate dipotassium salt; K₂-MBNS; Dipotassium methylenebisnaphthalenesulfonate; 2-Naphthalenesulfonic acid, 3,3'-methylenebis-, dipotassium salt; MBNDS (Dipotassium salt)
EINECS	Contact for details

Quality Control

Our production of Dipotassium 3,3'-Methylenebisnaphthalene-2-Sulphonate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and quality assurance.

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). This product is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition (Sulfated Ash)	Conforms
Solubility (in Water)	Clear, colorless to faint yellow solution

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