Description

Disodium Methylenebisnaphthalenesulphonate is a high-purity, water-soluble aromatic sulfonate salt widely recognized for its exceptional dispersing and complexing properties. This compound is critical for enhancing process efficiency and product stability in demanding industrial applications where control over particle agglomeration and scale formation is paramount. It serves as a key functional additive for manufacturers in the construction, textile, and water treatment industries, as well as in advanced material synthesis.

Application

• As a high-efficiency dispersant and plasticizer in concrete admixtures and cement grinding aids.
• Key component in textile dyeing and printing auxiliaries to improve color uniformity and fastness.
• Scale inhibitor and anti-precipitant in industrial water treatment and cooling tower systems.
• Dispersing agent for pigments, ceramics, and clay in various manufacturing processes.
• Stabilizer and complexing agent in the formulation of agrochemicals such as pesticides and herbicides.
• Additive in oilfield chemicals for drilling mud and enhanced oil recovery formulations.
• Intermediate in the synthesis of specialty chemicals, dyes, and optical brighteners.

Basic Information

Product Name	Disodium Methylenebisnaphthalenesulphonate
CAS No.	26545-58-4
Molecular Formula	C21H14Na2O6S2
Molecular Weight	472.43 g/mol
Synonyms	Disodium Methylenebis(naphthalenesulfonate); 2,2'-(Methylenedi-4,1-phenylene)bis[1,3,6-naphthalenetrisulfonic acid], Disodium Salt; Disodium 4,4'-Methylenebis(naphthalene-2-sulfonate); Naphthalenesulfonic acid, methylenebis-, disodium salt; Dispersant MF; Sodium methylenebisnaphthalenesulfonate; Lomar D; Morwet D-425
EINECS	247-791-3

Quality Control

Our Disodium Methylenebisnaphthalenesulphonate is manufactured under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, performance, and consistency. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with each shipment to guarantee traceability and compliance with your technical requirements.

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 material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Light yellow to brown powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
pH (1% Solution)	7.0 - 9.0
Water Content	≤ 5.0%
Sulfate (as SO4)	≤ 1.0%
Chloride (as Cl)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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