For product formulators and procurement managers in the chemical industry, a deep understanding of technical specifications is crucial when sourcing raw materials like Dioctyl Phthalate (DOP). As a vital plasticizer for PVC, its performance in your formulations directly impacts the quality and characteristics of your final products. This guide, provided by a leading chemical manufacturer and supplier, outlines the key technical specifications buyers should consider when purchasing DOP.

Dioctyl Phthalate (CAS 117-81-7), commonly referred to as DOP, is valued for its ability to impart flexibility, durability, and processability to PVC. When looking to buy industrial-grade DOP, pay close attention to several critical parameters that define its quality and suitability for your specific applications. These specifications ensure that you are obtaining a product that meets your performance requirements and is sourced from a reliable supplier.

One of the most important specifications is the Ester Content, typically expressed as a percentage (%). For high-quality industrial-grade DOP, this value should be high, ideally ≥99.5%. A higher ester content indicates a more concentrated and effective plasticizer, leading to better performance in your PVC compounds. Manufacturers committed to quality will prominently display this figure, and our facility consistently produces DOP meeting this high standard.

The Acid Value, usually measured in mg KOH/g, is another critical indicator of DOP purity. A low acid value, such as ≤0.1%, signifies minimal free acidity, which is important for preventing unwanted reactions or degradation in the plasticized material and during processing. Low acidity also contributes to the stability of the plasticizer itself, ensuring a longer shelf life and consistent performance. This is a key parameter we monitor closely during production.

The Appearance of Dioctyl Phthalate is also a primary visual cue for quality. It should be a clear, transparent liquid, free from inorganic suspended matter. Any discoloration or cloudiness could indicate impurities or degradation, suggesting a lower quality product. Our manufacturing process ensures that the DOP we supply is consistently transparent and meets the specified chrominance limits (Pt-Co No ≤ 30).

Other important specifications include Moisture Content (typically ≤0.1%), as excess water can affect processing and product properties, and Relative Density, which is important for volume calculations and material handling. For buyers looking to purchase DOP, understanding these technical details empowers you to make informed decisions and select a supplier that prioritizes quality and consistency. We are committed to providing transparent technical data for all our products.

We encourage product formulators and purchasing managers to review these specifications carefully when sourcing Dioctyl Phthalate. As a trusted manufacturer and supplier in China, we are dedicated to delivering high-purity DOP that meets all critical technical requirements. Contact us today to request a quote or discuss how our product can enhance your PVC applications.