PRODUCT
Description
1. Chemical Properties and Classification
1 4-Naphthalenedicarboxylic acid, Also known as naphthalene-1 4-dicarboxylic acid, it is an aromatic dicarboxylic acid organic compound. Its molecular composition is C 12H 8 O 4, its molecular mass is 216.19 and CAS number 605-70-9. The 1 4-Naphthalenedicarboxylic acid molecular structure is centered on a naphthalene-ring with carboxyl groups (-COOH) at the first and fourth positions of the ring. It belongs to the naphthalene-ring aromatic acids. This is a key monomer for high-performance polyesters.
2. Physical characteristics and morphology
At room temperature, 1 4-Naphthalenedicarboxylic acid is a white to pale yellow or orange crystalline powder. It has a melting point exceeding 300 degrees Celsius (some sources state 309 or 320 degrees C). The boiling point is about 490 degrees C. It is not soluble in water but produces a blue-green fluorescence when it is dissolved in alcohol. The acid dissociation constant, pKa, is approximately 2.71 and exhibits typical dicarboxylic properties.
3. Background to industry positioning and preparation
It is an important fine chemical and organic chemical intermediate. In industry, it is mainly prepared by liquid-phase oxidation of 1 4-Naphthalenedicarboxylic acid in the presence of cobalt manganese bromine catalyst, or by high-temperature and high-pressure oxidation of 1 4-Naphthalenedicarboxylic acid with potassium dichromate. It is the main monomer in high-performance polymer naphthalate.
Product Images & Packaging
Product Parameters
| 1 4-Naphthalenedicarboxylic acid Chemical Properties |
| Melting point | >300 °C (lit.) |
| Boiling point | 490.2±28.0 °C(Predicted) |
| density | 1.54 g/cm3 |
| storage temp. | Sealed in dry,Room Temperature |
| form | powder to crystal |
| pka | 2.71±0.10(Predicted) |
| color | White to Yellow to Orange |
| Water Solubility | Insoluble in water. |
| BRN | 2051255 |
| InChI | InChI=1S/C12H8O4/c13-11(14)9-5-6-10(12(15)16)8-4-2-1-3-7(8)9/h1-6H,(H,13,14)(H,15,16) |
The application of 1 4-Naphthalenedicarboxylic acid
Due to its bifunctional reactivity and rigid naphthalene rings, 1,4 Naphthalenedioic Acid is an excellent aromatic dicarboxylic with outstanding performance. It has a significant role in polymer industry, fine chemical, and materials science.
High-performance polymer field
This is the most important application direction of 1 4-Naphthalenedicarboxylic acid, whose value lies in endowing polymers with excellent heat resistance and mechanical properties. It is a major synthetic monomer in polyethylene naphthalate. The condensation of 1 4-Naphthalenedicarboxylic acid and Ethylene Glycol produces PEN. It is superior to PET because of its rigid naphthalene rings in the molecular structure. This makes it more resistant to heat, UV, and oxygen. It is used widely in high-performance bottles, food packaging films and aerospace structural components. Second, it is a structural unit in liquid crystal polymer. LCP is an engineering plastic that has self-reinforcing properties. It’s used to produce high-density connectors and 5G antenna components. Precision electronic parts are also made from it. Thirdly, the LCP is used to make special polyurethanes resins that improve material hydrolysis resistance and temperature stability.
Dye and Fluorescent whitening agent Industry
In fine chemical engineering, the 1 4-Naphthalenedicarboxylic acid is an important pre-cursor for synthesising high-value-added dyes. It is used in the preparation of high-performance dyes such as azo dyes or anthraquinone. The naphthalene-ring structure of the dye can be used to construct dye chromophore conjugated dye systems. This improves the color stability, light resistance, and color fastness of dyes. It is also one of the main raw materials used to produce fluorescent whitening agents. This whitening agent absorbs ultraviolet light to emit a blue fluorescence. It is used to counteract the slight yellow tint of paper, textiles and plastic substrates and improve the whiteness and brightness.
New materials in the pharmaceutical field
This compound has a wide range of applications in the areas of research and emerging technology. In materials chemistry 1 4-Naphthalenedicarboxylic acid is an organic ligand that is widely used. The two carboxyl groups of the acid can be coordinated with metal ions in a specific angle to create metal organic frameworks (MOF) with porous structure. These MOF materials are important for research in areas such as gas storage and selective adsorption, separation, and heterogeneous catalystism. As an organic synthetic intermediary, it can also be used in the medical field to create specific active pharmaceuticals or biologically active molecules. It is also used in the production of high adhesion materials, light stabilizers and special insulation materials.
1 4-Naphthalenedicarboxylic acid's Procurement Guide
Procurement Guidelines
1. Sample Policy
We can provide a 2-3g free trial package (shipping fee required)
2. Batch procurement
Packaging: 25kg/bag; 220kg/barrel; Special packaging according to your needs
MOQ：1kg
3. Customized services
Concentration customization (90% -99%)
Paeonol’s outsourcing services
FAQ
It is a key monomer for high-performance materials, mainly used for synthesizing high-temperature resistant polyester, liquid crystal polymer LCP, polyamide imide, dyes, and fluorescent whitening agents. It is also used in the fields of electronic packaging and optical materials.
The conventional purity is ≥ 99% (HPLC), and metal ions, moisture, and residual monoacids are strictly controlled, which can meet the high purity requirements of polyester polymerization and high-end material synthesis.
The two have different structures and application directions. 2,6-body is commonly used for PEN polyester fibers and films; 1,4-body focuses more on special engineering plastics, thermosetting resins, functional dyes and other fields.
Related References
Manufacturer of 1 4-Naphthalenedicarboxylic acid
Zhishang Bio is based in Shandong, serves the whole country, faces the world, and is determined to become an excellent supplier and service provider in the chemical industry.
As a top manufacturer of cosmetic raw materials, disinfectants, flavors and fragrances in China, we are committed to producing high-quality products and have won high praise from customers all over the world.
In the next 10 years or even longer, Zhishang Bio will always adhere to the tenet of quality first and reputation first, and devote itself to providing customers with thoughtful and perfect services.
As a professional 1 4-Naphthalenedicarboxylic acid manufacturer, Zhi shang Bio has served more than 6,000 customers around the world. Because of our high-quality products and professional services, we have won high praise from most of our customers.
Zhishang Bio is a professional enterprise engaged in the research and development, production, and sales of chemical raw materials. It has a strong supply chain system and strict quality control standards to ensure the provision of high-quality products with high purity and stability to customers.
Zhishang Bio’s core strength is its independent research and design capabilities. It has advanced production equipment, testing laboratories and can customize chemical raw materials to meet the market demands. This includes pharmaceuticals, electronic, coatings and agricultural applications.
Zhishang Bio’s supply chain management is based on long-term relationships with domestic and international suppliers of high quality to guarantee a stable supply, optimize logistic systems, and achieve efficient distribution. This helps reduce the cost of customer purchases.
We adhere to international environmental standards and we also adhere to the concept that environmental protection and safety production are important. All production processes must comply with these standards in order to guarantee that our products will be green and sustainable.
With a professional technical team and comprehensive after-sales service, Zhishang Bio can provide customers with precise technical support, solve application problems, and help customers enhance product competitiveness.
We are always customer-oriented and committed to becoming a trusted chemical raw material partner.
Zhishang Biography is dedicated to using clients extensive and expert service, including chemical raw material. The customers will certainly receive hassle-free, efficient and one-stop options.
1. Custom-made Supply Solutions
Zhishang Bio provides tailored services for clients in the chemical basic material sector, including special bit dimension, solvent residue control, stability optimizations and more. Clients can personalize their services to satisfy details requirements in industries such as drugs, electronic devices, and finishings.
2. Strict quality assurance
Zhishang Bio utilizes advanced screening equipment and stringent quality examination procedures, in addition to various other files, to guarantee that every batch of products is certified with international criteria such ISO GMP, REACH, and so on. Customers are also given with full quality records and conformity documents.
The supply chain is secure
Zhishang Bio has actually established lasting calculated collaborations with worldwide makers of top notch raw materials to make certain a secure supply, maximize the storage facility and logistics system, and assistance both small-scale examinations and large orders. It adjusted to the changing requirements of clients by responding flexibly to these changes.
4. Technical support
Zhishang Bio’s technical group can offer suggestions on product applications, formula optimization and analysis of industry patterns to aid clients fix technological troubles during production and boost item efficiency.
5. Efficient after-sales service
Zhishang Bio provides complete monitoring, reacts to client requests and delivers promptly. This will certainly make certain customer complete satisfaction.
Zhishang Biography intends to help consumers expand their service by providing the very best solutions and chemical resources.
DO YOU ACCEPT SAMPLE ORDER?
We will make samples before mass production. After the samples are approved by the department and users, we will start mass production. During the production process, we will carry out 100% inspection, and then carry out random inspection before packaging.
WHAT’S YOUR MOQ?
Our MOQ is 1kg. But usually we can also accept a smaller quantity, such as 100g, if you need it, provided that the sample fee is 100% paid.
IS THERE A DISCOUNT?
Different quantity has different discount.
HOW TO CONFIRM WHETHER THE PRODUCT QUALITY MEETS OUR NEEDS BEFORE PLACING AN ORDER?
You can consult us to get free samples of some products, you only need to pay the freight or arrange express delivery to us and get the samples. You can send us the product specifications and requirements you need, and we will manufacture products according to your requirements.
DO YOU SUPPLY PRODUCT REPORT?
Yes. We’ll give you product analysis report before shipping.
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1. For products ≤50kg, we recommend using express delivery, which is usually called DDU service (discounted, convenient).
2. For products ≤500kg, we generally recommend air freight, which is usually called FOB, CFR or CIF service (fast and efficient).
3. For products >500kg, we generally recommend shipping by sea, which is usually called FOB, CFR or CIF service (economical, safe).
4. For high-value products, please choose air or express to ensure the safety of product transportation.
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