For chemists, formulators, and procurement specialists in the B2B chemical industry, a thorough understanding of product properties and applications is crucial. Diisobutyl Phthalate (DIBP) is a compound that warrants close examination due to its significant role as a plasticizer and intermediate. This article, from the perspective of NINGBO INNO PHARMCHEM CO.,LTD., a leading chemical manufacturer, aims to illuminate the key chemical characteristics and diverse industrial applications of DIBP.

Chemical Identity and Composition

Diisobutyl Phthalate, with the CAS number 84-69-5 and molecular formula C16H22O4, is a diester of phthalic acid and isobutanol. It is characterized as a transparent, oily liquid at ambient temperatures. Its molecular weight is approximately 278.35 g/mol. The chemical structure features a benzene ring with two ester groups, each esterified with an isobutyl alcohol moiety. This structure contributes to its effectiveness as a plasticizer and its solubility characteristics.

Key Chemical and Physical Properties

  • Appearance: Transparent oily liquid.
  • Assay: Typically ≥ 99.5%, indicating high purity.
  • Molecular Weight: ~278.35 g/mol.
  • Boiling Point: Around 320°C, signifying good thermal stability.
  • Freezing Point: Approximately -37°C, providing a wide liquid range.
  • Density: Around 1.039 g/mL, making it denser than water.
  • Solubility: Soluble in most organic solvents (e.g., ethanol, ether) but sparingly soluble in water.
  • Stability: Exhibits good heat and light stability, a critical factor for long-term performance in products.

These properties collectively make DIBP an excellent candidate for applications where flexibility, durability, and resistance to environmental factors are required. NINGBO INNO PHARMCHEM CO.,LTD. ensures that our DIBP adheres to these quality specifications.

Diverse Industrial Applications of DIBP

The primary application of Diisobutyl Phthalate is as a plasticizer, enhancing the properties of various polymers and resins. Its uses span across numerous sectors:

  • PVC Products: Widely used to impart flexibility to PVC in applications such as vinyl fabrics, flooring, electrical cable insulation, and films. When you buy DIBP for PVC, you enhance its pliability and ease of processing.
  • Coatings and Lacquers: DIBP improves the film-forming properties, flexibility, and adhesion of paints, lacquers, and varnishes, particularly those based on cellulose nitrate or alkyd resins.
  • Adhesives and Sealants: It contributes to the tack, flexibility, and durability of various adhesive formulations and sealants.
  • Printing Inks: Used in printing inks to improve flow properties and the flexibility of the printed film.
  • Elastomers: Can be employed in the formulation of certain synthetic rubbers to modify their physical characteristics.
  • Cost-Effective Substitute: Often used as a more economical alternative to Dibutyl Phthalate (DBP) while offering comparable performance.

As a dedicated Diisobutyl Phthalate manufacturer and supplier in China, NINGBO INNO PHARMCHEM CO.,LTD. is committed to providing the chemical industry with this essential compound. We offer high-purity DIBP with a minimum assay of 99.5% and competitive pricing. We encourage businesses to contact us for a price quote and to discuss how our quality DIBP can benefit their specific applications.