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[Chemical Knowledge]:What are the upstream raw materials for dimethyl phthalate? What do the downstream products contain?

Dimethyl phthalate (DMP) is a common raw material for chemical production, which is widely used in plastics, coatings, inks, pharmaceuticals, pesticides and other fields. Its upstream and downstream related products are numerous, and some of the main products are described in detail below.

upstream products:

1. Phthalic acid: Phthalic acid is one of the main raw materials of DMP. DMP is prepared by esterification with methanol. Phthalic acid can be prepared by hydrolysis of phthalic anhydride, can also be synthesized by other chemical raw materials.

2. Methanol: Methanol is another main raw material in DMP production. It reacts with phthalic acid to produce DMP and water.

downstream products:

1. Plastic plasticizer: DMP can be used as a plastic plasticizer to improve the flexibility, ductility and processability of plastics. Common downstream plastic products include polyvinyl chloride (PVC), ethylene-vinyl acetate copolymer (EVA), etc.

2. Coatings and inks: DMP can be used as additives for coatings and inks to improve their leveling, drying and weather resistance. Downstream products include various coatings, inks, etc.

3. Pharmaceutical intermediates: DMP can be used as pharmaceutical intermediates for the production of some drugs, such as anti-inflammatory drugs, antibacterial drugs, etc.

4. Pesticide adjuvants: DMP can also be used as pesticide adjuvants to improve the effect and stability of pesticides.

In short, as an important chemical raw material, dimethyl phthalate has a wide range of upstream and downstream related products, involving plastics, coatings, inks, medicines, pesticides and other fields.
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