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[Chemical Knowledge]：What are the upstream raw materials for the quarter's four alcohols? What do the downstream products contain?

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Pentaerythritol (Pentaerythritol, PE) is an important chemical raw material, which is widely used in coatings, plastics, adhesives, explosives, pharmaceuticals, fuels and other fields. In the field of raw materials for chemical production, pentaerythritol has many upstream and downstream related products, and some major upstream and downstream products are listed as follows:

upstream products:

1. Formaldehyde: The production of pentaerythritol mainly uses formaldehyde as raw material and is obtained through aldehyde condensation reaction.
2. Acetaldehyde: Acetaldehyde can also be used to produce pentaerythritol, obtained by the self-condensation reaction of acetaldehyde.

Downstream Products:

1. Coating: pentaerythritol can be used as a crosslinking agent and curing agent in the coating to improve the water resistance and chemical resistance of the coating.
2. Plastics: Pentaerythritol can be used to produce plastic plasticizers, stabilizers, etc., to improve the processing performance and long-term use performance of plastics.
3. Adhesive: Pentaerythritol can be used as a curing agent, toughening agent, etc., to improve the bonding strength and durability of the adhesive.
4. Explosives: Pentaerythritol can be used to produce some explosives, such as pentaerythritol tetranitrate (PETN).
5. medicine: pentaerythritol can be used to produce some pharmaceutical intermediates, such as vitamin B6 and so on.

In short, as an important chemical raw material, pentaerythritol has a wide range of upstream and downstream related products, which is of great significance to the development of chemical production field.

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