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Dioctyl phthalate (DOP): properties, applications and features Dioctyl phthalate, also known as DOP (from English Dioctyl Phthalate), is an organic compound belonging to the class of phthalates. Its chemical formula is C6H4(COOC8H17)2, and the full name is di(2-ethylhexyl) phthalate. It is a colorless or slightly yellowish liquid with a faint odor, which is widely used in industry due to its unique properties. Properties DOP is a plasticizer, that is, a substance that is added to polymers to increase their flexibility, elasticity and resistance to low temperatures. It has low volatility, good thermal stability and solubility in most organic solvents, such as benzene or toluene. However, it is practically insoluble in water, which makes it stable in a humid environment. Production DOP is produced by esterifying phthalic anhydride with 2-ethylhexanol in the presence of a catalyst such as sulfuric acid. The process requires precise control of temperature and conditions to ensure high purity of the final product. Applications The primary use of dioctyl phthalate is in the production of polyvinyl chloride (PVC). Adding DOP to PVC makes the material soft and pliable, making it ideal for films, cable insulation, artificial leather, pipes and packaging materials. DOP is also used in the production of paints, varnishes and some adhesives where viscosity control and improved adhesion are required. Despite its widespread use, the use of DOP in some industries, such as children's toys and medical devices, is limited due to potential health risks. Research has shown that phthalates, including DOP, can act as endocrine disruptors, affecting the human hormonal system with prolonged exposure. Environmental Safety and environmental concerns have led to the use of DOP being strictly regulated in a number of countries, particularly in the European Union. Safer plasticizers such as citrates or adipates are being developed as alternatives, although they are often inferior to DOP in terms of cost and effectiveness. Conclus WhatsApp：+86 151 6624 0570 WeChat: 0086 15166240570