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

Read： 511 Time：19months ago Source：Transform the World with Simplicity

Sodium bisulfite plays an important role in the field of chemical production raw materials, and its upstream and downstream related products are quite abundant. The following are some major upstream and downstream related products:

upstream products:

1. Sulfuric acid: Sulfuric acid is the main raw material for the production of sodium bisulfite, which is obtained by absorbing sulfur dioxide gas and then reacting with alkali absorption solution.
2. Caustic soda: Caustic soda is also an important raw material for the production of sodium bisulfite, which reacts with sulfuric acid to produce sodium sulfite, which is then converted to sodium bisulfite by absorbing sulfur dioxide gas.

downstream products:

1. Formaldehyde: Sodium bisulfite can be used as a reducing agent in the production of formaldehyde, converting formaldehyde into sodium formate, and then producing formaldehyde.
2. insurance powder: sodium bisulfite can react with caustic soda to generate insurance powder (sodium dithionite), which is an important reducing agent and bleaching agent.
3. potassium iodide: sodium bisulfite can be used in the production of potassium iodide, as a reducing agent iodine elemental reduction to iodine ions, and then combined with potassium ions to generate potassium iodide.

In addition, sodium bisulfite can also be used in the production of many other chemical products, such as dyes, pharmaceuticals, rubber accelerators, etc. Therefore, it can be said that sodium bisulfite plays an important role in the field of chemical production raw materials, and its upstream and downstream related products are quite rich.

the upstream and downstream related products listed above are only a part. In fact, sodium bisulfite is widely used, and there are many upstream and downstream products, which cannot be listed here. For more information, it is recommended to consult the relevant literature or consult a professional.

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