Why is 1,3-Benzenedicarboxylic Acid Essential for Industrial Applications?
1,3-Benzenedicarboxylic Acid, also known as isophthalic acid, is a versatile organic compound widely utilized in the chemical industry. Its importance spans from polymer manufacturing to advanced industrial processes. Understanding its properties, applications, and sourcing considerations can help businesses make informed decisions and optimize production efficiency.
Table of Contents
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Introduction to 1,3-Benzenedicarboxylic Acid
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Chemical Properties and Structure
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Major Industrial Applications
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Comparison with Other Dicarboxylic Acids
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Sourcing and Quality Considerations
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Safety and Handling Guidelines
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Frequently Asked Questions
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Conclusion and Contact Information
1. Introduction to 1,3-Benzenedicarboxylic Acid
1,3-Benzenedicarboxylic Acid is a dicarboxylic aromatic compound with the molecular formula C8H6O4. Its structure features two carboxyl groups (-COOH) attached to a benzene ring in the 1,3-positions. This unique configuration provides chemical stability and makes it suitable for polymerization reactions and other industrial applications.
Ningbo Shanshan Resources Coproration specializes in supplying high-purity 1,3-Benzenedicarboxylic Acid, ensuring consistent quality for various manufacturing sectors, including polyester production, coatings, and specialty chemicals.
2. Chemical Properties and Structure
Understanding the chemical properties of 1,3-Benzenedicarboxylic Acid is crucial for optimizing its use in industrial processes:
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Property
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Details
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Molecular Formula
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C8H6O4
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Molecular Weight
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166.13 g/mol
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Appearance
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White crystalline powder
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Melting Point
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≈ 228 °C
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Solubility
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Soluble in hot water, methanol, and acetone
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pKa
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3.46 and 4.43 (two carboxylic groups)
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The dual carboxyl groups make it highly reactive for esterification, polycondensation, and other chemical modifications. This characteristic is particularly valuable in producing high-strength polymers and resins.
3. Major Industrial Applications
1,3-Benzenedicarboxylic Acid serves as a cornerstone in several industrial applications, providing enhanced durability, chemical resistance, and structural stability:
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Polyester Production: Used as a monomer in manufacturing PET (polyethylene terephthalate) and unsaturated polyester resins.
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Coatings and Paints: Acts as an intermediate in high-performance coatings that require chemical and heat resistance.
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Plasticizers: Helps in producing additives that improve flexibility and longevity of polymers.
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Pharmaceutical Intermediates: Used in synthesizing active pharmaceutical ingredients (APIs) where aromatic dicarboxylic acids are required.
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Specialty Chemicals: Plays a role in producing dyes, pigments, and other chemical intermediates.
4. Comparison with Other Dicarboxylic Acids
1,3-Benzenedicarboxylic Acid is often compared with other isomers such as 1,2-benzenedicarboxylic acid (phthalic acid) and 1,4-benzenedicarboxylic acid (terephthalic acid). Each has unique properties affecting their industrial suitability:
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Property / Acid
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1,2-Benzenedicarboxylic Acid
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1,3-Benzenedicarboxylic Acid
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1,4-Benzenedicarboxylic Acid
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Common Use
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Plasticizers, alkyd resins
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Polyester resins, coatings
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High-strength PET, fibers
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Melting Point
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≈ 208 °C
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≈ 228 °C
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≈ 300 °C
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Chemical Reactivity
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High, due to ortho configuration
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Moderate, balanced reactivity
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Lower, due to para configuration
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Advantages
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Fast reaction in esterification
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Stable intermediate for polymers
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High thermal stability
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The 1,3-isomer offers an ideal balance between reactivity and stability, making it a preferred choice for many industrial applications.
5. Sourcing and Quality Considerations
Choosing a reliable supplier is critical for consistent performance. Ningbo Shanshan Resources Coproration ensures that all 1,3-Benzenedicarboxylic Acid batches meet strict purity standards (≥99%) and are free from harmful impurities.
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Consistent crystal size and solubility
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Reliable chemical stability during storage
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Compliance with industrial and environmental standards
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Custom packaging and logistics support
Quality assurance helps manufacturers avoid production disruptions and maintain product integrity across diverse applications.
6. Safety and Handling Guidelines
While 1,3-Benzenedicarboxylic Acid is relatively safe under standard conditions, proper handling is necessary:
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Use personal protective equipment (gloves, goggles) during handling.
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Avoid inhalation of dust and prolonged skin contact.
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Store in a cool, dry, and ventilated environment.
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Follow local regulations for chemical disposal.
Adhering to these guidelines ensures workplace safety and maintains chemical effectiveness.
7. Frequently Asked Questions
Q1: What industries benefit most from 1,3-Benzenedicarboxylic Acid?
A1: Industries such as polyester production, coatings, plasticizers, pharmaceuticals, and specialty chemicals benefit significantly due to its versatility and chemical stability.
Q2: How does 1,3-Benzenedicarboxylic Acid differ from terephthalic acid?
A2: The 1,3-isomer has two carboxyl groups in meta positions, offering balanced reactivity and thermal stability, whereas terephthalic acid has para positions and higher melting point, suitable for high-strength PET.
Q3: Can Ningbo Shanshan Resources Coproration supply large-scale industrial quantities?
A3: Yes, the company specializes in supplying both small and large-scale quantities, ensuring consistent quality for industrial production.
Q4: What is the ideal storage condition?
A4: Store in a cool, dry, ventilated area, away from moisture and strong oxidizing agents.
Q5: Is it safe to handle without special equipment?
A5: Standard PPE such as gloves and goggles is recommended to prevent skin and eye irritation, although the compound is generally stable under normal handling conditions.
8. Conclusion and Contact Information
1,3-Benzenedicarboxylic Acid plays a pivotal role in modern chemical manufacturing. Its chemical stability, versatility, and efficiency make it a preferred choice across various industrial applications. Partnering with a trusted supplier like Ningbo Shanshan Resources Coproration ensures reliable sourcing, consistent quality, and technical support for your production needs.
For inquiries, bulk orders, or technical assistance, contact us today and discover how Ningbo Shanshan Resources Coproration can support your industrial success.
