16303-32-5

Usage

Uses

Used in Polymer and Plastics Industry:
2,6-Naphthalene dicarboxylic acid disodium salt (tetrahydrate) is used as a plasticizer and a flame retardant for enhancing the flexibility and fire resistance of polyesters and polymers.
Used in Pharmaceutical Industry:
In the pharmaceutical sector, 2,6-Naphthalene dicarboxylic acid disodium salt (tetrahydrate) serves as a key ingredient in the production of various pharmaceuticals, contributing to the development of new drugs and formulations.
Used in Dye and Pigment Industry:
2,6-Naphthalene dicarboxylic acid disodium salt(tetra hydrate) is utilized as a raw material in the manufacturing of dyes and pigments, providing color and stability to a range of products in the industry.

Upstream product

• 17273-44-8 α-naphthoic acid, sodium salt 
• 17273-79-9 sodium 2-naphthalene carboxylate 
• 840-65-3 dimethyl 2,6-naphthalenedicarboxylate 
• 1141-38-4 2,6-Naphthalenedicarboxylic acid 

Relevant academic research and scientific papers

A structural investigation of organic battery anode materials by NMR crystallography

Conjugated alkali metal dicarboxylates have recently received attention for applications as organic anode materials in lithium- and sodium-ion batteries. In order to understand and optimise these materials, it is important to be able to characterise both

Sodium Naphthalene-2,6-dicarboxylate: An Anode for Sodium Batteries

The conjugated dicarboxylate sodium naphthalene-2,6-dicarboxylate (Na2NDC) was prepared by a low-energy-consumption reflux method, and its performance as a negative electrode for sodium-ion batteries was evaluated in electrochemical cells. The structure of Na2NDC was solved for the first time (monoclinic P21/c) from powder XRD data and consists of π-stacked naphthalene units separated by sodium–oxygen layers. Through an appropriate choice of binder and conducting carbon additive, Na2NDC exhibited a reversible two electron sodium insertion at approximately 0.4 V (vs. Na+/Na) with remarkably stable capacities of approximately 200 mAh g?1 at a rate of C/2 and good rate capability (≈133 mAh g?1 at 5 C). In parallel, the high thermal stability of the material was demonstrated by high-temperature XRD: the framework remained intact to above 500 °C.

Method for preparing 2,6-naphthalene dicarboxylic acid

Disclosed is an improved method for preparing 2,6-naphthalene dicarboxylic acid from di-lower alkyl 2,6-naphthalene dicarboxylate, which is characterized in that hydrolyzing di-lower alkyl 2,6-naphthalene dicarboxylate in a specified amount of water in the presence of specified amount of hydrophobic organic solvent and an additive; that hydrolyzing di-lower alkyl 2,6-naphthalene dicarboxylate in a specific amount of a mixed solvent of non-water miscible alcohol and water; or in that di-lower alkyl 2,6-naphthalene dicarboxylate is hydrolyzed in two steps wherein the 1st step comprises hydrolyzing said ester in a water miscible organic solvent in the presence of a small amount of water, and the 2nd step comprises further hydrolyzing the reaction.

Preparation of Naphthalene-2,3,6,7-tetracarboxylic Acid

In the presence of sodium iodide and cadmium oxide, sodium 1-naphthoate was effectively converted into naphthalene-2,3,6,7-tetracarboxylate at 480 deg C under carbon dioxide pressure.The minor product was naphthalene-2,6-dicarboxylate.Also in the rearrangement of sodium 2-naphthoate, the addition effect of sodium iodide was observed.