[Chemical Knowledge]：The nature, use, upstream and downstream raw materials, storage methods of dioctyl adipate, is dioctyl adipate carcinogenic?

Properties of dioctyl adipate

Dioctyl adipate (Di-n-octyl adipate,DOA), is a widely used plasticizer with chemical formula C22H42O4. It is a transparent, colorless to slightly yellow oily liquid with low volatility and low viscosity. DOA is chemically very stable, light resistance, heat resistance and cold resistance is better, not easy to be acid, alkali and ultraviolet decomposition. It has good flexibility and processing properties at low temperatures, making it an ideal plasticizer.

Use of dioctyl adipate

DOA is widely used in many industrial fields, mainly as a plasticizer for plastics and rubber. It is widely used in polyvinyl chloride (PVC) products, including cables, floors, wallpapers, artificial leather, films, etc. DOA can significantly improve the flexibility and cold resistance of PVC, making it suitable for low temperature environment. DOA is also used in the manufacture of food packaging materials, medical devices, agricultural films, etc., because of its low toxicity and safety, to meet the relevant safety standards and regulations.

Dioctyl adipate upstream and downstream raw materials

The production of DOA mainly relies on two basic chemicals, adipic acid and n-octanol. Adipic acid (Adipic acid) is an important organic dibasic acid, which is prepared from cyclohexane by oxidation reaction. N-Octanol (1-Octanol) is a long-chain fatty alcohol, usually obtained from natural fatty acids by hydrogenation reduction or from petrochemicals by synthetic routes.

Upstream: The price and availability of adipic acid and n-octanol directly affect the production cost of DOA. The main production processes of adipic acid include the oxidation of cyclohexane and the keto-alcohol method, while n-octanol is mainly prepared by the reduction of nonanal or the esterification and reduction process of fatty acids. The supply of these upstream raw materials is not only affected by fluctuations in the market price of raw materials, but also by changes in production processes, environmental regulations and market demand.

Downstream: DOA's downstream products mainly include various PVC products, such as cable sheathing, floor leather, food packaging materials, etc. DOA is also used in some specialty rubbers, coatings, lubricants and inks. The market demand of these downstream products and the development of production technology directly determine the market prospect and application scope of DOA.

Storage method of dioctyl adipate

As a chemical, DOA needs to be stored properly to ensure its stability and safety. DOA should be stored in a dry, cool and well-ventilated warehouse, away from heat, fire and strong oxidants. Storage containers should be well sealed to prevent leakage and moisture absorption. Due to the high flash point of DOA, there is no fire risk in general, but it is still necessary to prevent container breakage and volatilization.

During transportation, DOA should avoid direct sunlight and rain, and take anti-leakage measures to ensure transportation safety. The transport containers shall comply with the relevant regulations and standards for the transport of chemicals, usually packed in plastic drums or iron drums.

Future market outlook

With the advancement of global industrialization and increasingly stringent environmental regulations, the market demand for DOA is expected to continue to grow. Especially in the field of PVC products and food packaging, DOA has attracted more and more attention due to its excellent performance and low toxicity. With the rise of bio-based materials and green plasticizers, the production process and application fields of DOA will continue to expand.

The strengthening of environmental regulations and consumers' attention to health and safety will promote the plasticizer market to develop in the direction of environmental protection, low toxicity and high performance. As a traditional plasticizer, DOA still has great potential in technology improvement and application expansion. For example, the production of DOA through bio-based routes will further reduce its environmental impact and improve product sustainability.

Conclusion

As an important plasticizer, dioctyl adipate has excellent physical and chemical properties and a wide range of applications. The stability and supply of its upstream and downstream industry chain directly affect its market price and application prospects. Proper storage and transportation methods are the key to ensuring its safety and stability. Looking forward to the future, DOA will have broader application prospects in the industrial and environmental protection fields, especially driven by environmentally friendly plasticizers and bio-based materials, the market demand for DOA will continue to grow. Through technological innovation and process improvement, DOA will further meet the market demand for high-performance, low-toxicity plasticizers and promote the sustainable development of related industries.