Description

2,6-Naphthalene Dicarboxylic Acid Disodium Salt (Tetra Hydrate) is a high-purity, water-soluble salt derivative of 2,6-naphthalenedicarboxylic acid. This compound serves as a critical intermediate and monomer in the synthesis of advanced polymers and specialty chemicals. It is primarily sought after by manufacturers in the polymer, liquid crystal, and pharmaceutical industries for its role in producing high-performance materials with excellent thermal and mechanical properties.

Application

• Polymer Synthesis: Key monomer for producing high-performance engineering plastics like Polyethylene Naphthalate (PEN) and specialty polyesters.
• Liquid Crystal Polymers (LCPs): Used as a rigid-rod monomer component to enhance thermal stability and mechanical strength in LCP formulations.
• Pharmaceutical Intermediates: Serves as a building block in the synthesis of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Dye and Pigment Manufacturing: Intermediate in the production of high-quality naphthalene-based dyes and organic pigments.
• Advanced Material Research: Utilized in R&D for developing new polymers, coatings, and composites with specific functional properties.
• Chemical Synthesis: Versatile precursor for various organic synthesis reactions, including the preparation of esters and other derivatives.

Basic Information

Product Name	2,6-Naphthalene Dicarboxylic Acid Disodium Salt (Tetra Hydrate)
CAS No.	16303-32-5
Molecular Formula	C12H6Na2O8 · 4H2O
Molecular Weight	388.18 g/mol (Anhydrous basis: 316.15 g/mol)
Synonyms	2,6-NDA Disodium Salt Tetrahydrate; Disodium 2,6-Naphthalenedicarboxylate Tetrahydrate; 2,6-Naphthalenedicarboxylic Acid Disodium Salt Hydrate; NDCA Disodium Salt; 2,6-Naphthalic Acid Disodium Salt; 2,6-Pyridinedicarboxylic Acid Disodium Salt Tetrahydrate (common misnomer); 2,6-NDC-Na2·4H2O
EINECS	Contact for details

Quality Control

Our 2,6-Naphthalene Dicarboxylic Acid Disodium Salt (Tetra Hydrate) is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product quality and handling properties. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	18.0 - 22.0% (Theoretical for Tetrahydrate: ~18.6%)
Heavy Metals (as Pb)	≤ 10 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%
Solubility (1% in Water)	Clear, colorless solution
pH (5% aqueous solution)	7.0 - 9.0

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