Description

Sodium 8-Hydroxynaphthalene-2-Sulphonate is a key organic intermediate and dye precursor with significant industrial utility. This compound is valued for its role in synthesizing azo dyes, pigments, and other functional colorants. It is primarily required by manufacturers in the dye and pigment, textile, and specialty chemical industries for producing vibrant and stable colors.

Application

• Azo Dye Synthesis: A crucial coupling component for manufacturing a wide range of orange, red, and brown azo dyes and pigments.
• Textile Dyeing & Printing: Used in the production of dyes for coloring natural and synthetic fibers, including cotton and polyester blends.
• Pigment Manufacturing: Serves as an intermediate for organic pigments used in inks, paints, and plastics.
• Chemical Intermediate: Employed in organic synthesis for creating more complex sulfonated naphthalene derivatives.
• Research & Development: Utilized in laboratory settings for developing new chromophores and functional materials.

Basic Information

Product Name	Sodium 8-Hydroxynaphthalene-2-Sulphonate
CAS No.	93805-26-6
Molecular Formula	C₁₀H₇NaO₄S
Molecular Weight	246.21 g/mol
Synonyms	8-Hydroxy-2-naphthalenesulfonic acid sodium salt; 2-Naphthol-8-sulfonic acid sodium salt; Sodium 8-hydroxy-2-naphthalenesulfonate; 8-Hydroxynaphthalene-2-sulfonic acid sodium salt; 2,8-Dihydroxynaphthalene-6-sulfonic acid (tautomer reference); Schaeffer's salt sodium salt; 8-Hydroxy-2-naphthalenesulphonic acid sodium salt
EINECS	Contact for details

Quality Control

Our Sodium 8-Hydroxynaphthalene-2-Sulphonate is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure consistent purity and performance suitable for industrial synthesis. A Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with every shipment to guarantee specification compliance.

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 to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to light beige powder
Identification (IR)	Conforms to structure
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.