Dibutyl Phthalate (DBP), identified by its CAS number 84-74-2, is a foundational chemical in the world of plasticizers. Its unique properties make it indispensable for enhancing the flexibility and workability of polymers, particularly PVC, and finding utility across a broad spectrum of industrial applications. As a leading chemical manufacturer and supplier, we are committed to providing high-quality DBP and educating our clients on its optimal use. This article outlines the key characteristics and applications of DBP.

Key Properties of Dibutyl Phthalate (DBP)
DBP is characterized by a set of physical and chemical properties that make it an effective plasticizer:

  • Appearance: Typically a clear, colorless liquid, though commercial grades may exhibit a slight yellow tint due to impurities.
  • Chemical Formula: C16H22O4, indicating its structure as a diester of phthalic acid.
  • Molecular Weight: Approximately 278.348 g/mol.
  • Density: Around 1.044-1.048 g/cm³ at 20°C, making it denser than water.
  • Boiling Point: Approximately 340°C, signifying its low volatility, which is advantageous for plasticizers.
  • Melting Point: Low, around -35°C, contributing to good low-temperature flexibility in polymers.
  • Solubility: It has limited solubility in water but is miscible with most organic solvents.
  • Ester Content: High purity grades often exceed 99.5% ester content, ensuring consistent performance.
  • Flash Point: Typically above 160°C (closed cup), indicating a relatively low fire hazard under normal handling conditions.

These properties collectively contribute to DBP's efficacy in modifying polymer characteristics, making it a sought-after plasticizer when you need to buy DBP.

Diverse Applications of Dibutyl Phthalate (DBP)
The versatility of DBP allows it to be employed in a wide array of industrial sectors:

  • PVC Plasticization: DBP is a primary plasticizer for PVC, enhancing its flexibility for applications such as films, sheeting, flooring, and wire insulation.
  • Adhesives and Sealants: It improves the pliability, adhesion, and elongation of various adhesive and sealant formulations.
  • Coatings and Lacquers: DBP enhances the film-forming properties and flexibility of paints, varnishes, and nitrocellulose lacquers.
  • Printing Inks: It functions as a solvent and plasticizer in printing inks, aiding in ink flow and adhesion to different substrates.
  • Other Uses: Historically, it has been used in cosmetics (like nail polish), though its use in such applications has declined due to regulatory changes. It also finds applications in explosives and as a solvent in various chemical processes.

For manufacturers across these industries, securing a reliable source of high-quality DBP is crucial. As a leading Dibutyl Phthalate manufacturer in China, we ensure product consistency and availability. We encourage you to reach out to us to discuss your DBP needs, inquire about pricing, and place your order.