Description

Methylnaphthalenesulphonic Acid is a versatile organic sulfonic acid derivative, valued for its strong acidity and surfactant properties in industrial formulations. Its chemical structure makes it an effective intermediate and dispersing agent in various synthesis and processing applications. This product is essential for manufacturers in sectors such as agrochemicals, dyes, and polymer production, where reliable performance and consistent quality are critical.

Application

• As a key intermediate in the synthesis of dyes, pigments, and optical brighteners.
• Functioning as an effective dispersing agent and emulsifier in pesticide and agrochemical formulations.
• Utilized in the production of concrete plasticizers and other construction chemical additives.
• Acting as a catalyst or acidulant in various organic synthesis reactions.
• Employed in the formulation of industrial cleaning compounds and degreasers.
• Serving as a raw material for the production of specialty surfactants and sulfonated polymers.

Basic Information

Product Name	Methylnaphthalenesulphonic Acid
CAS No.	41638-59-9
Molecular Formula	C11H10O3S
Molecular Weight	222.26 g/mol
Synonyms	Methylnaphthalenesulfonic Acid; 2-Methylnaphthalene-1-sulfonic Acid; 1-Methyl-2-naphthalenesulfonic Acid; MNSA; Methyl naphthalene sulfonate; NSC 403119; 1-Sulfo-2-methylnaphthalene
EINECS	Contact for details

Quality Control

Our Methylnaphthalenesulphonic Acid is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, acidity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance with your quality requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Due to its strong acid nature, containers should be kept upright to prevent leakage. Recommended storage temperature is between 15°C and 25°C.

Specification

Item	Specification
Appearance	Light yellow to brown viscous liquid or solid
Identification (IR)	Conforms
Assay (Titration)	Min. 95%
Sulfuric Acid (as H2SO4)	Max. 2.0%
Water Content	Max. 1.0%
pH (1% Solution)	< 2.0

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