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Dioctyl phthalate (DOP) is a colorless, odorless liquid that is primarily used as a plasticizer in the production of flexible polyvinyl chloride (PVC) products. It is synthesized from phthalic anhydride and 2-ethylhexanol, resulting in a compound that enhances the flexibility, durability, and workability of plastics. DOP is widely utilized in various applications, including flooring, cables, and synthetic leather.
| Chemical formula | C22H38O4 |
| Molecular weight | 390.56 g/mol |
| Boiling point | 390 °C |
| Density | 0.986 g/cm³ |
| Flash point | 210 °C |
When selecting dioctyl phthalate, consider the intended application and the required performance characteristics such as viscosity and compatibility with other materials. It's important to specify the purity level, as higher purity grades may be necessary for certain applications. Additionally, inquire about certifications and regulatory compliance, especially for products used in consumer goods or food packaging.
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DOP is mainly used as a plasticizer in PVC products.
DOP is subject to regulatory scrutiny, and safety assessments should be considered for consumer applications.
Alternatives include other phthalates and non-phthalate plasticizers like adipates and citrates.
Its use in food packaging is regulated, and specific grades must be certified for safety.
It should be stored in a cool, dry place away from heat sources and direct sunlight.
DOP is produced through the esterification of phthalic anhydride and 2-ethylhexanol.