Description

Disodium 1,5-Naphthalenedisulfonate is a high-purity, water-soluble aromatic sulfonate salt widely used as a key intermediate and functional additive in advanced chemical synthesis. Its primary value lies in its ability to act as a solubilizing agent, dispersant, and anionic surfactant, enhancing the performance of various formulations. This product is essential for manufacturers in the dye and pigment, textile, polymer, and specialty chemical industries seeking reliable and consistent raw material quality.

Application

• As a crucial intermediate in the synthesis of acid dyes, reactive dyes, and optical brighteners.
• As an effective dispersing agent and leveling agent in textile dyeing and printing processes.
• As a solubilizer and anionic surfactant in specialty detergent and cleaning formulations.
• As a stabilizer and emulsifying aid in polymer and resin production.
• In the manufacture of concrete admixtures as a water-reducing agent component.
• As a chemical intermediate for pharmaceuticals and agrochemicals.
• In electroplating solutions as an additive for bath stabilization and grain refinement.
• For research and development purposes in organic chemistry and material science.

Basic Information

Product Name	Disodium 1,5-Naphthalenedisulfonate
CAS No.	1655-29-4
Molecular Formula	C10H6Na2O6S2
Molecular Weight	332.24 g/mol
Synonyms	1,5-Naphthalenedisulfonic Acid Disodium Salt; Disodium Naphthalene-1,5-disulfonate; Naphthalene-1,5-disulfonic Acid Disodium Salt; 1,5-NDS Disodium Salt; Acid Leather Brown GSN; Disodium 1,5-NDS; NSC 40312; 1,5-Naphthalenedisulfonate Disodium Salt
EINECS	216-759-1

Quality Control

Our Disodium 1,5-Naphthalenedisulfonate is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. Certificates of Analysis (COA) documenting key parameters are provided to guarantee traceability and batch-to-batch consistency for our global B2B clients.

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 nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
pH (5% Solution)	7.0 - 9.0
Heavy Metals (as Pb)	≤ 20 ppm
Sulfate (as SO4)	≤ 0.5%

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