Dioctyl Phthalate (DOP), also known chemically as Bis(2-ethylhexyl) phthalate (DEHP), is a well-established chemical compound widely recognized for its utility as a plasticizer. Its widespread use stems from a combination of favorable physical properties and economic viability, making it a cornerstone in various manufacturing sectors. This article aims to explore the key properties of DOP and its diverse industrial applications, providing insight into why it remains a relevant and important chemical additive.
At its core, DOP is a colorless, odorless liquid with a clear appearance. Its chemical formula, C24H38O4, reveals a structure conducive to its function as a plasticizer. One of its most significant properties is its low volatility, meaning it does not readily evaporate at standard processing temperatures. This low volatility is crucial for maintaining the integrity and performance of plasticized products over their lifespan, preventing embrittlement or loss of flexibility due to plasticizer escape.
Furthermore, DOP exhibits excellent compatibility with a range of polymers, most notably polyvinyl chloride (PVC). This compatibility allows it to integrate seamlessly into the polymer matrix, effectively reducing the intermolecular forces between polymer chains. The result is a marked increase in flexibility, extensibility, and workability of the material. This makes rigid PVC pliable and suitable for applications such as films, imitation leather, and flexible tubing.
The plasticizing efficiency of DOP is another key attribute that contributes to its popularity. It allows manufacturers to achieve a high degree of softening at relatively low concentrations. This efficiency translates into economic benefits for producers, allowing for cost-effective formulation of flexible PVC products. When considering the dop plasticizer uses, this efficiency is paramount in balancing performance with cost.
DOP's good stability to heat and ultraviolet (UV) light adds to its value. Products manufactured with DOP can better withstand exposure to environmental factors like sunlight and elevated temperatures without undergoing significant degradation. This makes it suitable for outdoor applications or products that may experience thermal stress during their use.
Beyond its primary role as a plasticizer, DOP also serves other functions in industrial settings. It can act as a solvent for certain chemicals, finding use in niche applications. For instance, it has been employed in the formulation of glow sticks. Its dielectric properties also lend it to applications in dielectric fluids, and its lubricating qualities make it suitable for certain hydraulic fluid formulations.
The industrial applications of DOP are extensive. It is a vital component in the production of synthetic rubber, where it acts as a softening agent, enhancing the material's elasticity and resilience. In the processing of PVC, DOP is used to create a vast array of products, including:
The demand for effective plasticizers like DOP continues as industries strive to create materials that are both functional and cost-efficient. NINGBO INNO PHARMCHEM CO.,LTD. is a dedicated supplier of high-quality chemicals, including Dioctyl Phthalate, ensuring that manufacturers have access to the materials they need to innovate and succeed.
Manufacturing Facilities






Professional Export Experience
to Global Customers
1. 20 years of R&D, manufacturing and sales experience, serving customers in 60 countries and regions around the world;
2. Own R&D laboratory, pilot platform and large-scale production workshop, which can meet the audit requirements of global customers;
3. We can satisfy customers' perfect transition from small scale lab requirements (gram level) to commercialization requirements (hundred tons level).
A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.