1141-38-4

Basic information

• Product Name: 2,6-NAPHTHALENEDICARBOXYLIC ACID
• Synonyms: NAPHTHALENE-2,6-DICARBOXYLIC ACID;TIMTEC-BB SBB008377;2,6-NAPHTHALENEDICARBOXYLIC ACID;2,6-NAPHTHALIC ACID;2,6-NAPHTHALENEDICARBOXYLIC ACID, 99.5+%;2,6-NAPHTHALENEDICARBOXYLIC ACID 98+%;Naphthalene-2,6-dicarboxylic acid, 98+%;Naphthalene-2,6-dicarboxylic acid 99%
• CAS NO: 1141-38-4
• Molecular Formula: C₁₂H₈O₄
• Molecular Weight: 216.19
• EINECS: 214-527-0
• Product Categories: Intermediates of Dyes and Pigments;Naphthalene derivatives;Carboxylic Acid MonomersAlternative Energy;Physisorption;Materials for Hydrogen Storage;Monomers;Polymer Science;C11 to C12;Carbonyl Compounds;Carboxylic Acids;Aromatics;Intermediates & Fine Chemicals;Pharmaceuticals;Achiral Oxygen
• Mol File: 1141-38-4.mol
• Article Data: 39

Chemical Properties

• Melting Point: >300 °C(lit.)
• Boiling Point: 316.6°C (rough estimate)
• Flash Point: 232.396 °C
• Appearance: white/Powder
• Density: 1.5
• Vapor Pressure: 2.03E-08mmHg at 25°C
• Refractive Index: 1.7080 (estimate)
• Storage Temp.: Sealed in dry,Room Temperature
• Solubility: very faint turbidity in hot Pyridine
• PKA: 3.69±0.30(Predicted)
• Water Solubility: 3μg/L at 20℃
• BRN: 2051257
• CAS DataBase Reference: 2,6-NAPHTHALENEDICARBOXYLIC ACID(CAS DataBase Reference)
• NIST Chemistry Reference: 2,6-NAPHTHALENEDICARBOXYLIC ACID(1141-38-4)
• EPA Substance Registry System: 2,6-NAPHTHALENEDICARBOXYLIC ACID(1141-38-4)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 24/25
• WGK Germany: 3
• TSCA: T
• HazardClass: IRRITANT
• Hazardous Substances Data: 1141-38-4(Hazardous Substances Data)

Usage

Description

2,6-Naphthalenedicarboxylic acid, also known as H2ndc, is a polybasic acid characterized by its beige powder appearance. It is a crucial monomer in the production of various materials due to its high strength and excellent dyeing properties. This product has been enhanced for energy efficiency and is known for its chemical properties that make it suitable for a wide range of applications.

Uses

Used in Coatings Industry:
2,6-Naphthalenedicarboxylic acid is used as a component in resinous and polymeric coatings that come into contact with food, providing high strength and excellent dyeing properties to the coatings.
Used in Textile Industry:
2,6-Naphthalenedicarboxylic acid is used as a monomer for the manufacture of polyester fibers with high strength and excellent dyeing properties, making it an essential component in the production of textiles.
Used in Electrical Insulation Industry:
2,6-Naphthalenedicarboxylic acid is used as a monomer in the production of F class insulation material, contributing to its high performance and reliability in electrical applications.
Used in Polymer and Resin Industry:
2,6-Naphthalenedicarboxylic acid is an important monomer for the production of high-performance polymers such as PEN (Polyethylene Naphthalate), PBN (Polybutylene Naphthalate), liquid crystal polymer (LCP), and polyurethane resin, which are used in various applications including pharmaceutical and fine chemicals.
Used in Metal-Organic Coordination Polymers (MOCPs) and Metal-Organic Frameworks (MOFs) Industry:
2,6-Naphthalenedicarboxylic acid (H2ndc) is used in the formation of MOCPs for potential applications in fields such as adsorption, separation, and magnetism. It can also be used as a monomer in the synthesis of MOFs, which can further be utilized as drug carriers in the pharmaceutical industry.

Flammability and Explosibility

Notclassified

InChI:InChI=1/C12H8O4/c13-11(14)9-3-1-7-5-10(12(15)16)4-2-8(7)6-9/h1-6H,(H,13,14)(H,15,16)/p-2

Upstream product

• 31656-49-2 naphthalene-2,6-dicarbonitrile 
• 91-20-3 naphthalene 
• 67-63-0 isopropyl alcohol 
• 5859-93-8 naphthalene-2,6-dimethanol 
• 64-19-7 acetic acid 
• 59919-41-4 2,6 diethyl naphthalene 
• 518-05-8 Naphthalene-1,8-dicarboxylic acid 
• 201230-82-2 carbon monoxide 
• 2065-70-5 2,6-dichloronaphthalene 
• 4542-77-2 2,6-bis(bromomethyl)naphthalene 
• 840-65-3 dimethyl 2,6-naphthalenedicarboxylate 
• 5084-45-7 6-formyl-2-naphthoic acid 
• 222044-40-8 2,6-naphthalenedicarboxylic acid triethylamine 
• 91-57-6 2-Methylnaphthalene 

Downstream Products

• 2351-36-2 2,6-dichloroformyl naphthalene 
• 46711-49-3 2,6-naphthalenedicarboxamide 
• 91-20-3 naphthalene 
• 124-38-9 carbon dioxide 
• 749846-69-3 5,5?-((naphthalene-2,6-dicarbonyl)bis(azanediyl))diisophthalic acid 
• 5859-93-8 naphthalene-2,6-dimethanol 
• 745078-25-5 naphthalene-2,6-dicarbodithioic acid dibenzyl ester 
• 5060-65-1 2,6-naphthalenedicarbaldehyde 
• 98331-88-5 2,6-diamino-1,4,5,8-tetranitronaphthalene 
• 840-65-3 dimethyl 2,6-naphthalenedicarboxylate 
• 1041865-70-6 C₄₀H₄₄O₈Si₂ 

Relevant articles and documents

Preparation of 2,6-naphthalic acid by liquid phase oxidation of 2,6-diisopropyl naphthalene

An orthogonal experiment was carried out and the effects of bromine, metal ions additives and organic nitrogen compounds on the yield of 2,6-naphthalic acid were discussed. The results shown that influence order for the yield of 2,6-naphthalic acid in the

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Preparation method of dimethyl 2, 6-naphthalate

The invention discloses a preparation method of dimethyl 2, 6-naphthalate. Specifically, the preparation method of the dimethyl 2, 6-naphthalate disclosed by the invention comprises the following steps: carrying out esterification reaction on 2, 6-naphthalic acid and methanol under a pressurization condition in the presence of a catalyst, and filtering without further purification to obtain the dimethyl 2, 6-naphthalate, wherein the mass ratio of the methanol to the 2, 6-naphthalic acid is (3: 1)-(25: 1), the reaction temperature ranges from 100 DEG C to 150 DEG C. According to the preparation method disclosed by the invention, the operation is simplified, the yield of the dimethyl 2, 6-naphthalate is improved, and meanwhile, the purity of the dimethyl 2, 6-naphthalate is maintained.

Method for preparing aromatic carboxylic acid compound

The invention discloses a method for preparing an aromatic carboxylic acid compound. The method comprises the following steps: 1) heating carbon dioxide and hydrosilane in the presence of a copper catalyst in a reaction medium A; and 2) adding a reaction medium B, aryl halide, a palladium catalyst and a base to the reaction mixture in the step 1), sealing the reaction system, and performing a heating reaction. The method has the advantages that raw materials are simple and easy to obtain, the raw materials are cheap and stable, the catalyst is common, easy to obtain and stable, the reaction conditionsaremild, the aftertreatment is simple, the yield is high, and the like.

Method for preparing high-purity naphthalic acid by taking naphthalene as raw material

The invention discloses a method for preparing high-purity naphthalic acid by taking naphthalene as a raw material. The method comprises the following steps of 1) an alkylation reaction, wherein naphthalene, 1-isopropylnaphthalene and a catalyst are added into a reaction kettle, propylene is introduced for heating for a reaction, and diisopropylnaphthalene is obtained; 2) rectification/crystallization separation, wherein crude 2,6-diisopropylnaphthalene is obtained through rectification, and then high-purity 2,6-diisopropylnaphthalene is obtained through a crystallization method; 3) an oxidation reaction, wherein one or a mixture of a Co-Mn-Br catalyst, glacial acetic acid and propionic acid serves as a solvent, oxygen-containing gas is used for oxidizing diisopropylnaphthalene, and 2,6-naphthalic acid is obtained through liquid-phase synthesis; 4) purification, wherein an object obtained in step 3 is subjected to solid-liquid separation, washing and drying, and 2,6-naphthalic acid solid powder is obtained.