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    Dioctyl Terephthalate (DOTP) (99,5%) - Taiwan

    Dioctyl Terephthalate (DOTP) (99,5%) - Taiwan in Tradeasia

    IUPAC Name

    Bis(2-ethylhexyl)benzene-1,4-dicarboxylate

    Cas Number

    6422-86-2

    HS Code

    2917.39.90

    Formula

    C24H38O4

    Basic Info

    Appearance

    Colorless, Clear, Oily Liquid

    Common Names

    Di(ethylhexyl) Terephthalate;1,4-Benzenedicarboxylic Acid Bis(2-ethyhexyl) Ester

    Packaging

    200 Kg Metal Drum

    Brief Overview

    Dioctyl terephthalate (DOTP) is a non-phthalate plasticizer that is commonly used in the production of various plastic and polymer products. It is a clear, colorless liquid that is highly resistant to heat and has a high degree of compatibility with PVC, making it an ideal replacement for traditional phthalate plasticizers. Unlike some phthalate plasticizers, DOTP is not considered a reproductive or developmental toxin and has a low potential for acute toxicity. As a result, it has been approved for use in a variety of food contact applications and medical devices.

    Manufacturing Process

    1. Esterification: The first step in the process involves the esterification of terephthalic acid with 2-ethylhexanol. This reaction is typically carried out in the presence of a catalyst, such as titanium or antimony, and produces bis(2-ethylhexyl) terephthalate (DEHT).

    2. Transesterification: The DEHT is then subjected to transesterification with 2-ethylhexanol to produce DOTP. This reaction is typically carried out in the presence of a catalyst, such as zinc or calcium, and involves the exchange of one of the ethylhexyl groups in DEHT with an ethylhexyl group from 2-ethylhexanol.

    3. Purification: The DOTP is then purified to remove any remaining impurities, such as catalyst residues and unreacted starting materials. This is typically done through a combination of processes, including distillation, filtration, and washing.

    Wire and cable insulation

    DOTP is commonly used as a plasticizer in the production of PVC wire and cable insulation. It helps to improve the flexibility and durability of the insulation, making it more resistant to cracking and breaking.

    Automotive interiors

    DOTP is also used in the production of automotive interiors, such as dashboard covers, seat covers, and door panels. It provides excellent heat resistance and durability, which are important properties for materials that are exposed to high temperatures and wear.

    Flooring

    DOTP is commonly used as a plasticizer in the production of PVC flooring. It helps to improve the flexibility and durability of the flooring, making it more resistant to cracking and tearing.

    Medical devices

    DOTP is widely used as a plasticizer in the production of medical devices, such as IV bags and tubing. It is preferred over phthalate plasticizers, which have been linked to health concerns, and is considered safe for use in medical applications.

    Food packaging

    DOTP is also used as a plasticizer in the production of food packaging materials, such as cling wrap and food containers. It is considered safe for use in food contact applications and is a preferred alternative to phthalate plasticizers.

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