Bis(2-ethylhexyl) phthalate
Di (2-ethylhexyl) phthalate is produced commercially by the reaction of excess 2-ethylhexanol with phthalic anhydride in the presence of an acid catalyst such as sulfuric acid or para -toluenesulfonic acid. It was first produced in commercial quantities in Japan around 1933 and in the United States in 1939. [7]
Plasticizers: Synthesis of phthalate esters via FeCl3
Recently, sulfamic acid has been used to prepare dibutyl phthalate (4d) using about 6% catalyst loading by weight of the total reaction mixture either at 180 °C [13] or microwave conditions [14]. Dioctyl phthalate (DOP) is synthesized by using methanesulfonic acid as a catalyst at 160 °C [15].
Plasticizer
Ditridecyl phthalate (DTDP) is the highest molecular weight phthalate plasticizer, providing greater performance at high temperature. It is the preferred plasticizer for automotive cable and wire application. Terephthalates [ edit]
Comparative table of indicators of plasticizers DOP and DOTP
In this article investigates the effect of the content of plasticizers on the properties of rubbers based on rubber BNKS-18 AMN. The traditional, widely used dioctyl phthalate (DOP), as...
Differences of plasticizers - LinkedIn
Dioctyl phthalate (DOP) DOP is formed by the reaction of phthalic anhydride with n-octanol. The structure of DOP is shown in the figure below: Dioctyl terephthalate (DOTP) DOTP is...
- What is dioctyl phthalate (DOP)?
- As one of the most commonly used plasticizers, Dioctyl phthalate (DOP) is a transparent oily liquid in appearance. Get a qutoe now.
- Is dioctyl phthalate soluble in water or oil?
- Dioctyl phthalate is soluble in oil but not water. The density of DOP is less than water, so it floats on the surface of water. Dioctyl phthalate accounts for more than 54% of the market share for plasticizers and is considered a high production volume chemical.
- How is dioctyl phthalate synthesized?
- Dioctyl phthalate is synthesized by the esterification of phthalic anhydride with 2-ethylhexyl alcohol using a homogeneous acid catalyst such as concentrated sulfuric acid. This process is typically carried out in batch reactors under controlled temperature conditions for 16-20 hours.
- What is DOP plasticizer?
- DOP plasticizer is a transparent oily liquid with no visible impurities in appearance, which is insoluble in water, soluble in most organic solvents such as ethanol, ether, mineral oil, etc. As the most widely used plasticizer in industry, DOP as good compatibility with most synthetic resins and rubbers used in industry.
- What phthalate is used in PVC?
- Di- (2-ethylhexyl) phthalate (DEHP, dioctyl phthalate, DOP) is the international standard PVC plasticizer, and the properties of other plasticizers are often measured against DEHP. Other general-purpose phthalates include diisononyl phthalate (DINP), di-isodecyl phthalate (DIDP), and di (2-propylheptyl) phthalate (DPHP).
- What is food grade dioctyl phthalate DOP?
- Food grade dioctyl phthalate DOP. Mainly used in the production of food packaging materials. But because it is easily extracted by fat, it is not suitable for fatty food packaging materials. Medical-grade dioctyl phthalate DOP.
