Description

Dodecylnaphthalenesulfonic Acid, Sodium Salt is a high-purity anionic surfactant and wetting agent derived from naphthalene. This compound is valued for its excellent emulsifying, dispersing, and surface-active properties in demanding industrial formulations. It is a critical component for manufacturers in sectors requiring stable emulsions and effective detergency, such as agrochemicals, industrial cleaning, and textile processing.

Application

• Agrochemical Formulations: Acts as a key emulsifier and dispersant in pesticides, herbicides, and fungicides, enhancing stability and sprayability.
• Industrial & Institutional (I&I) Cleaners: Serves as a powerful surfactant in heavy-duty degreasers, metal cleaners, and floor care products.
• Textile Processing: Used as a wetting agent, scouring aid, and dye dispersant to improve processing efficiency and fabric quality.
• Oilfield Chemicals: Functions as an emulsifier and demulsifier in drilling muds and crude oil processing applications.
• Construction Additives: Employed in concrete admixtures and gypsum board production to improve wetting and dispersion.
• Paint & Coating Industry: Utilized as a pigment grinding aid and dispersant to prevent settling and ensure color uniformity.
• Leather Processing: Aids in the tanning and dyeing processes by improving the penetration of chemicals.
• Paper Manufacturing: Used in de-inking processes and as a dispersant for coatings and fillers.

Basic Information

Product Name	Dodecylnaphthalenesulfonic Acid, Sodium Salt
CAS No.	40382-75-0
Molecular Formula	C22H31NaO3S
Molecular Weight	398.53 g/mol
Synonyms	Sodium Dodecylnaphthalenesulfonate; Dodecylnaphthalene Sodium Sulfonate; Naphthalenesulfonic Acid, Dodecyl-, Sodium Salt; Dinonylnaphthalenesulfonic Acid, Sodium Salt (related); Wetting Agent ND; Dispersant ND; Surfactant ND; Sodium Alkyl Naphthalene Sulfonate
EINECS	254-897-5

Quality Control

Our Dodecylnaphthalenesulfonic Acid, Sodium Salt is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for active content, purity, and performance characteristics. A comprehensive Certificate of Analysis (COA) detailing assay, moisture content, pH, and other critical parameters is provided with each shipment to guarantee consistency and compliance with your formulation 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); keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which may affect product performance.

Specification

Item	Specification
Appearance	Light yellow to brown powder or flakes
Identification (IR)	Conforms
Assay (Active Matter)	≥ 95.0 %
Moisture Content	≤ 3.0 %
pH (1% Solution)	7.0 - 9.0
Sodium Sulfate	≤ 2.0 %
Solubility	Freely soluble in water

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