Isophthalic acid

Isophthalic acid

,3-Benzenedicarboxylic Acid; 1,3-Dicarboxybenzene; Isophthalate;

CAS 121-91-5

Chemical Formula C8H6O4

Molecular Weight 166.13 g/mol

Isophthalic acid is a benzene dicarboxylic acid with two carboxyl groups positioned meta to each other. It is widely used in the synthesis of polyesters and resins, offering improved thermal and chemical resistance compared to other dicarboxylic acids.

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Industrial Uses

1. Polymers & Resins

  • Polyethylene Terephthalate (PET) Production: Isophthalic acid is widely used as a co-monomer in the production of PET resins to improve the performance of packaging materials. It enhances the clarity, impact resistance, and durability of PET bottles and containers, making them suitable for beverages, food packaging, and other consumer goods.
  • Unsaturated Polyester Resins (UPR): It is used in the formulation of unsaturated polyester resins, which are used to produce fiberglass-reinforced plastics. These materials are commonly employed in automotive parts, marine applications, and construction due to their high strength, chemical resistance, and ease of molding.

2. Paints & Coatings

  • Powder Coatings: Isophthalic acid is used in powder coatings for its ability to provide better weather resistance, color retention, and durability. Powder coatings are applied to a variety of surfaces, including metals and plastics, used in automotive, architectural, and industrial applications.
  • Can and Coil Coatings: Isophthalic acid-based polyesters are used in coatings for food and beverage cans, as well as for metal coils used in construction and automotive industries, to provide excellent adhesion, flexibility, and corrosion resistance.

3. Pharmaceuticals

  • Drug Formulations: In pharmaceuticals, isophthalic acid derivatives can be used in the formulation of certain drug delivery systems and excipients that improve drug stability and control release rates.
  • Polymer Production for Drug Delivery: Isophthalic acid is used in the production of certain polymers that may be employed in controlled-release drug formulations. These polymers can help in the targeted delivery and controlled release of active pharmaceutical ingredients (APIs).
  • Medical Plastics: Due to its high chemical resistance and durability, isophthalic acid is utilized in the production of plastics and resins used in medical devices, such as syringes, vials, and medical packaging.

4. Personal Care

  • Film-Forming Agents: Isophthalic acid derivatives are used as film-forming agents in cosmetic formulations, such as nail lacquers and hair sprays, to enhance durability, adhesion, and gloss.

5. Chemical Synthesis

  • Intermediate in Chemical Synthesis: It serves as an intermediate in the synthesis of other chemicals, such as plasticizers and specialty polymers, which are used in a variety of industrial applications.

Specifications

Assay ≥ 99% (depending on the grade)
Appearance White crystalline powder
Odor Odorless
Boiling Point 300°C (572°F)
Melting Point 340°C (644°F)
Density 1.54 g/cm³
Solubility Slightly soluble in water; soluble in hot ethanol
Viscosity Not applicable (solid at room temperature)
Flash Point Not flammable

Hazard Symbols

Corrosives
Irritants/Sensitisers/Other Hazards

FAQs

1. What is the current price of Isophthalic acid in India?
The price of Isophthalic acid in India can vary based on factors such as purity, quantity, etc. For the most accurate and competitive pricing, please contact us at +91-22-4343 2121 directly for a customized quote tailored to your needs.

2. Where can I buy Isophthalic acid in India?
You can purchase Isophthalic acid from MULTICHEM, a leading importer with a reputation for quality and reliability. We provide convenient options for bulk orders and direct shipments across India. For more details on how to place an order, please visit our website or contact our sales team.

3. What is the minimum order quantity (MOQ) for Isophthalic acid?
Our minimum order quantity (MOQ) for Isophthalic acid is designed to cater to both small-scale and large-scale needs. The MOQ depends on the packing size of the product which could range from 25 kg to 250kg.

4. How can I ensure the quality of Isophthalic acid supplied by Multichem?
We adhere to stringent quality control processes to ensure that our products meet the highest standards of purity and effectiveness. They undergo rigorous testing and quality checks to guarantee that they comply with industry specifications. We provide a Certificate of Analysis (CoA) with every shipment to ensure transparency and quality assurance.