Source di n octyl phthalate dop for PVC, Leather, and Coatings

Di N Octyl Phthalate DOP Sourcing Guide

Di N Octyl Phthalate, commonly known as DOP, serves as a critical liquid plasticizer primarily for PVC applications, appearing as a white or colorless transparent liquid in commercial listings. Buyers must recognize that while the product is fundamentally a plasticizer, specific listings may also categorize it under coating auxiliary agents or leather chemicals, indicating versatile utility across multiple manufacturing sectors. The observed market data confirms the substance is available in drum and IBC drum formats, with origins traced to regions like Dongying, Shandong, ensuring a steady supply chain for industrial needs.

Procurement decisions should account for the distinct physical properties observed in current listings, such as a specific gravity ranging from 0.924 to 0.986 and a boiling point near 384 degrees Celsius. These physical constants are essential for process engineering, particularly when the material is utilized in gas chromatography or as a solvent in electronic chemicals. Sourcing teams must verify that the liquid form matches the required viscosity and density for their specific molding or extrusion lines, as variations in these attributes can significantly impact the final product's flexibility and durability.

Product Scope and Observed Listing Signals

The product scope for DOP encompasses a wide range of industrial applications, including PVC plasticization, leather auxiliary agents, and electronics chemicals, as evidenced by diverse listing descriptions. Buyers should note that while the core function remains plasticization, some suppliers explicitly highlight its use in coating auxiliary agents, suggesting a broader chemical compatibility profile than standard plasticizers. This variability requires careful alignment between the supplier's stated usage and the buyer's specific production requirements to ensure the material performs correctly within the intended manufacturing process.

Listing signals indicate that customization is available, allowing buyers to tailor packaging or purity levels to their operational constraints. The observed price range of 501 to 1900 USD reflects differences in purity, packaging volume, and supplier location, necessitating a clear definition of requirements before engaging with vendors. Furthermore, the availability of different packing options, such as 200kg drums or 1000kg IBC drums, provides flexibility for logistics planning, but buyers must confirm that the selected packaging aligns with their storage capacity and handling equipment capabilities.

Technical Specifications to Verify

Technical verification must begin with the chemical identity, specifically confirming the CAS number 117-84-0 or 103-23-1 depending on the specific isomer or grade offered by the supplier. The molecular formula C24H38O4 and a purity level of 99% to 99.5% are critical benchmarks that directly influence the plasticizer's efficiency and the stability of the final PVC product. Buyers should request batch-specific test reports to validate these figures, as deviations in purity can lead to processing issues or compromised material properties in the finished goods.

Physical property verification is equally vital, with attention paid to the flash point, which ranges between 190 and 195 degrees Celsius, and the acid value, typically around 0.07 MgKOH/g. These parameters dictate storage safety and handling protocols, particularly regarding fire prevention and corrosion control in processing equipment. Additionally, the melting point of -50 degrees Celsius ensures the material remains liquid under standard ambient conditions, but buyers must confirm the specific gravity and vapor density match their design specifications to prevent issues in mixing and dispensing systems.

Compliance and Safety Documentation

Compliance documentation is a primary concern, with REACH and CCIC certifications appearing frequently in product listings as indicators of regulatory adherence. Buyers must verify that the specific batch they intend to purchase carries valid certification documents, as these are essential for exporting to markets with strict chemical regulations. The presence of these certifications suggests a baseline of environmental and safety compliance, but procurement teams should not assume all listed products automatically satisfy every regulatory requirement without explicit documentation for the specific transaction.

Safety data regarding the vapor density of 13.5 and the upper explosion limit of 11.2 must be reviewed to establish safe handling procedures and storage conditions. The requirement for storage in a dry place is a standard safety measure to prevent degradation or reaction with moisture, which could alter the chemical properties of the DOP. Buyers should ensure that their safety protocols align with the flash point data to mitigate fire risks, and they must confirm that the supplier provides comprehensive Safety Data Sheets (SDS) that accurately reflect the specific grade and purity of the material being supplied.

Cost Drivers and Commercial Terms

Cost drivers for DOP are influenced by the purity percentage, packaging type, and the specific origin of the product, such as Dongying, Shandong. Listings show a price range of 501 to 1900 USD, which likely correlates with the volume of the order and the specific packaging configuration, such as galvanized metal pails versus standard drums. Buyers should analyze whether the higher price points correspond to superior purity grades or specialized packaging that reduces handling costs, rather than assuming a linear relationship between price and quality.

Commercial terms regarding Minimum Order Quantity (MOQ) and lead times are critical for supply chain planning, with observed MOQs ranging from 1 to 20 units. The flexibility in MOQ allows smaller buyers to enter the market, but larger volume orders may secure better pricing and more favorable shipping terms. Procurement teams must clarify the lead time associated with the specific packaging and origin, as variations in production schedules or logistics from the Chinese origin can impact delivery reliability and inventory management strategies.

Supplier Qualification and Quality Control

Supplier qualification should prioritize those who explicitly state adherence to standards like SGS and provide clear evidence of their production capabilities in regions like Dongying. The presence of CCIC certification is a positive indicator, but buyers must verify that the supplier maintains consistent quality control processes that align with the stated specifications for density, boiling point, and acid value. Relying solely on the presence of a certification name without verifying the scope and validity of the audit can lead to receiving non-compliant materials.

Quality control measures must include rigorous testing of incoming batches against the specified molecular formula and physical properties to ensure consistency. Buyers should establish a protocol for verifying the specific gravity and flash point of each delivery, as these are key indicators of product integrity. Implementing a system where third-party testing is conducted upon receipt can mitigate the risk of receiving substandard material, ensuring that the DOP meets the precise requirements for PVC plasticization and other specialized applications.

Long-Term Procurement Checks

Long-term procurement strategies should focus on building relationships with suppliers who demonstrate consistent adherence to environmental protection standards and customization capabilities. The observation that environmental protection is listed as both "Yes" and "No" in different contexts highlights the need for buyers to explicitly define their sustainability requirements and verify that the supplier can meet these specific criteria over time. This proactive approach ensures that the supply chain remains resilient and compliant with evolving environmental regulations.

Continuous monitoring of market trends and supplier performance is essential to maintain a competitive edge and ensure supply stability. Buyers should regularly review the technical specifications and pricing trends to identify potential shifts in the market that could affect their cost structure or material availability. By maintaining a dynamic procurement strategy that adapts to changes in supplier offerings and regulatory landscapes, organizations can secure a reliable supply of high-quality DOP for their ongoing production needs.