When sourcing chemical compounds for industrial applications, understanding the precise specifications is paramount to ensuring product quality and process efficiency. Dibutyl Phthalate (DBP), a widely used plasticizer and solvent, has a set of defined characteristics that are crucial for formulators and manufacturers. This article explores the key specifications of DBP that users should be aware of when considering its purchase.

The primary characteristic that defines the quality of DBP is its purity. Typically, DBP is expected to have an ester content of 99.5% or higher. This high purity level ensures that the compound performs consistently and effectively in its intended applications, whether as a PVC plasticizer or a component in paints and adhesives. Impurities can affect solvency, compatibility, and overall product performance, making high purity a critical purchasing factor.

Visually, Dibutyl Phthalate is described as a transparent liquid. This clear, oily appearance is indicative of its chemical nature. Its color is also a key specification, often measured on the Platinum-Cobalt (Pt-Co) scale, with acceptable values typically being below 30. A low color value suggests minimal contamination and adherence to quality standards.

Other important physical and chemical properties of DBP include its density and flash point. The relative density at 20ºC is usually around 1.044-1.048, and the density at 20ºC is approximately 1.044-1.048 g/cm³. The flash point, which indicates the lowest temperature at which its vapors can ignite, is generally above 160ºC, signifying a degree of safety in handling and storage. Acid value and moisture content are also monitored, with low acceptable limits (typically ≤ 0.1% for both) to ensure stability and prevent unwanted reactions.

For procurement professionals and chemists, sourcing DBP oil from a reputable Dibutyl Phthalate supplier is vital to guarantee these specifications are met. Understanding the typical DBP price can also guide purchasing decisions, but it should always be considered in conjunction with the quality and consistency of the product. Whether you are looking to buy DBP for PVC applications, or as a chemical auxiliary in coatings or inks, a thorough review of the product's specifications will ensure optimal results and a secure supply chain.