Description

Sodium 6-Hydroxynaphthalenesulphonate is a versatile aromatic sulfonate salt widely used as a key intermediate in chemical synthesis. Its primary value lies in its ability to act as a coupling agent and a building block for more complex dyes, pigments, and optical brighteners. This compound is essential for manufacturers in the dye and pigment, textile, and specialty chemical industries seeking to produce high-performance colorants and functional materials.

Application

• Primary intermediate in the synthesis of azo dyes and pigments.
• Key building block for manufacturing optical brightening agents (OBAs) used in paper and detergent formulations.
• Coupling agent in the production of specialized naphthalene-based chemicals.
• Intermediate for liquid crystal and other advanced organic materials.
• Used in research and development of pharmaceutical intermediates.
• Component in the manufacture of corrosion inhibitors and other industrial additives.

Basic Information

Product Name	Sodium 6-Hydroxynaphthalenesulphonate
CAS No.	25059-15-8
Molecular Formula	C10H7NaO4S
Molecular Weight	246.21 g/mol
Synonyms	6-Hydroxynaphthalene-1-sulfonic Acid Sodium Salt; 6-Hydroxy-1-naphthalenesulfonic Acid Sodium Salt; 1-Naphthalenesulfonic Acid, 6-Hydroxy-, Sodium Salt; Sodium 6-Hydroxy-1-naphthalenesulfonate; 6-Hydroxynaphthalene-1-sulphonic Acid Sodium Salt; 6-Naphthol-1-sulfonic Acid Sodium Salt
EINECS	Contact for details

Quality Control

Our Sodium 6-Hydroxynaphthalenesulphonate is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing to ensure consistent purity and meets the specifications required for industrial and fine chemical synthesis. A Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	Off-white to light beige powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm

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