Description

1,6-Naphthalenedisulfonic Acid, Sodium Salt is a high-purity, water-soluble organic salt derived from naphthalene disulfonic acid. This compound serves as a critical intermediate and functional additive in advanced chemical synthesis and industrial processes. It is essential for manufacturers in the dye, pigment, and specialty chemical sectors seeking reliable performance and consistent quality.

Application

• Dye and Pigment Intermediate: A key building block in the synthesis of acid dyes, reactive dyes, and optical brighteners.
• Chemical Synthesis: Used as a sulfonating agent and anionic surfactant precursor in organic synthesis.
• Electroplating Additive: Functions as a brightening agent and leveler in electroplating baths for metal finishing.
• Polymer Industry: Acts as a comonomer or dopant in the production of conductive polymers and specialty resins.
• Analytical Chemistry: Employed as a standard or reagent in chromatographic and spectroscopic methods.
• Research & Development: Serves as a versatile starting material for pharmaceutical and agrochemical research.

Basic Information

Product Name	1,6-Naphthalenedisulfonic Acid, Sodium Salt
CAS No.	104432-57-7
Molecular Formula	C10H6Na2O6S2
Molecular Weight	332.24 g/mol
Synonyms	Disodium 1,6-Naphthalenedisulfonate; 1,6-Naphthalenedisulfonic Acid Disodium Salt; Naphthalene-1,6-disulfonic Acid Sodium Salt; 1,6-NDS Disodium Salt; Acid Yellow 1 Intermediate; C.I. 10316; 1,6-NDSA Na Salt
EINECS	Contact for details

Quality Control

Our 1,6-Naphthalenedisulfonic Acid, Sodium Salt is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for industrial and research applications. A Certificate of Analysis (COA) detailing all quality parameters is provided with every shipment.

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); the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
pH (5% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm

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