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[Chemical Knowledge]：What are the upstream raw materials of the alcohol? What do the downstream products contain?

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Penediol (pentanediol) has a wide range of applications in the field of chemical production raw materials. The following are some of the upstream and downstream related products of the
glycol:
1. Upstream products:

(1) Ethylene: Ethylene is one of the main raw materials of the glycol, which is produced by the ethylene oxidation method and then reacted with water to obtain the glycol.

(2) Formaldehyde: Formaldehyde can be reacted with acetaldehyde under alkaline conditions to give the glycolide.

2. Downstream products:

(1) Polyester resin: the reaction of glycol and terephthalic acid to produce polyester resin, commonly used in the production of beverage bottles, films, fibers and other products.

(2) Polyurethane: The reaction of diol and diisocyanate produces polyurethane, which is commonly used in the production of foam, elastomers, coatings and other products.

(3) Plasticizer: It can be used to produce plasticizers, such as phthalate, which is often used in plastic processing to increase the flexibility and plasticity of plastics.

(4) Stabilizer: It can be used to produce heat stabilizers, such as stearic acid, which is commonly used in polyvinyl chloride processing to prevent its thermal decomposition.

In short, as an important chemical raw material, it has a wide range of applications in the field of chemical production raw materials. Its upstream and downstream related products cover many fields, such as plastics, rubber, coatings, fibers, etc.

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