Description

Dimethylnaphthalenesulphonic Acid is a specialized organic sulfonic acid derivative, valued for its strong acidic properties and surfactant characteristics. This compound is a critical intermediate and functional additive in several high-value industrial synthesis and formulation processes. It is primarily sought by manufacturers in the chemical, agrochemical, and specialty materials sectors for its role in catalysis, dispersion, and as a building block for more complex molecules.

Application

• As a catalyst or acid catalyst component in organic synthesis and esterification reactions.
• As a key intermediate in the production of dyes, pigments, and optical brighteners.
• As a dispersant and emulsifying agent in agrochemical formulations like pesticides and herbicides.
• In the synthesis of specialty surfactants and sulfonated polymers.
• As an additive in electroplating baths and other surface treatment processes.
• For research and development purposes in fine chemical and pharmaceutical synthesis.

Basic Information

Product Name	Dimethylnaphthalenesulphonic Acid
CAS No.	31091-50-6
Molecular Formula	C₁₂H₁₂O₃S
Molecular Weight	236.29 g/mol
Synonyms	Dimethylnaphthalenesulfonic Acid; 2,6-Dimethylnaphthalene-1-sulfonic Acid; Dinonylnaphthalenesulfonic Acid (related); DNSA; Naphthalenesulfonic acid, dimethyl-; Sulfonic acid, C10-16-alkyl esters, compounds with 2,2',2''-nitrilotris[ethanol] (related mixtures); Dispersant DN; Wetting Agent DN
EINECS	Contact for details

Quality Control

Our Dimethylnaphthalenesulphonic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specific batch results are provided and available upon request to support your quality assurance protocols.

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 sealed to prevent absorption of atmospheric moisture. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Light yellow to brown viscous liquid or solid
Identification (IR)	Conforms
Assay (Titration)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Sulfuric Acid (as H₂SO₄)	≤ 1.5%
pH (1% Solution)	< 2.0

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