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

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Oxalic acid plays an important role in the field of raw materials for chemical production, and its upstream and downstream related products are also quite rich. Some of the main upstream and downstream related products of oxalic acid will be described in detail below.

upstream products:

1. Zinc oxide: Oxalic acid production process, zinc oxide is an important raw material. Zinc oxide and sulfuric acid reaction, and then after a series of treatment, finally can get oxalic acid.
2. Sulfuric acid: Sulfuric acid also plays an important role in the production process of oxalic acid. It reacts with zinc oxide to generate zinc sulfate, and then undergoes reduction, crystallization and other steps to finally obtain oxalic acid.

downstream products:

1. Ethylene oxalate: Oxalic acid and ethanol react in the presence of an acidic catalyst to produce ethylene oxalate. It is an important organic synthesis intermediate that can be used in the production of plastics, fibers, dyes, etc.
2. Oxalate: Oxalic acid reacts with various metal salts to generate the corresponding oxalate. Oxalates are widely used in medicine, printing and dyeing, food and other industries.
3. Ferrous oxalate: oxalic acid reacts with ferrous salt to generate ferrous oxalate. Ferrous oxalate is an important chemical raw material, which can be used in the production of batteries, pigments and so on.
4. Cobalt oxalate: Oxalic acid reacts with cobalt salt to generate cobalt oxalate. Cobalt oxalate is a catalyst, which can be used in petrochemical, environmental protection and other fields.

In general, there are many upstream and downstream related products of oxalic acid, which is mainly due to the important position of oxalic acid in chemical production. With the continuous development of science and technology, the application field of oxalic acid and its related products will continue to expand.

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