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

Chemical Properties

BEIGE POWDER

Uses

Different sources of media describe the Uses of 1141-38-4 differently. You can refer to the following data:
1. A polybasic acid intended for use as components of resinous and polymeric coatings that contact food.
2. 2,6-naphthalenedicarboxylic acid is an important product for the manufacture of high strength and excellent dyeing properties of polyester fibers and F class insulation material, is an important monomer performance PEN, PBN, liquid crystal polymer (LCP) and polyurethane resin pharmaceutical and fine chemicals raw material.
3. 2,6-Naphthalenedicarboxylic acid (H2ndc) can be used in the formation of metal-organic coordination polymers (MOCPs) for potential applications in various fields such as adsorption, separation, and magnetism. It can also be used as a monomer in the production of polyesters. H2ndc can also be used in the synthesis of a metal-organic framework (MOF), which can further be used as a drug carrier.

General Description

This product has been enhanced for energy efficiency.

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

• 91-20-3 naphthalene 
• 67-63-0 isopropyl alcohol 
• 581-42-0 2.6-dimethylnaphthalene 
• 24157-81-1 2,6-diisopropylnaphthalene 
• 69750-34-1 2-methyl-6-propanoyl naphthalene 
• 91-57-6 2-Methylnaphthalene 
• 5156-83-2 6-methyl-2-acetonaphthone 
• 124-38-9 carbon dioxide 
• 13720-06-4 2,6-dibromonaphthalene 
• 222044-40-8 2,6-naphthalenedicarboxylic acid triethylamine 
• 840-65-3 dimethyl 2,6-naphthalenedicarboxylate 
• 5859-92-7 2,6-Bis-acetoxymethyl-naphthalin 
• 204119-68-6 2,6-bis(methoxymethyl)naphthalene 
• 4542-77-2 2,6-bis(bromomethyl)naphthalene 

Downstream Products

• 840-65-3 dimethyl 2,6-naphthalenedicarboxylate 
• 128018-90-6 6-(benzyloxycarbonyl)-2-naphthoic acid 
• 91-20-3 naphthalene 
• 124-38-9 carbon dioxide 
• 98331-88-5 2,6-diamino-1,4,5,8-tetranitronaphthalene 
• 344879-85-2 Naphthalene-2,6-dicarboxylic acid bis-[(2-amino-4-methoxy-phenyl)-amide] 
• 344881-83-0 Naphthalene-2,6-dicarboxylic acid bis-[(2-amino-4,5-dimethyl-phenyl)-methyl-amide] 
• 344881-81-8 Naphthalene-2,6-dicarboxylic acid bis-[(2-amino-4-methoxy-phenyl)-methyl-amide] 
• 344766-89-8 Naphthalene-2,6-dicarboxylic acid bis-[(4-methoxy-2-nitro-phenyl)-amide] 
• 344767-39-1 Naphthalene-2,6-dicarboxylic acid bis-[(4,5-dimethyl-2-nitro-phenyl)-methyl-amide] 

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.