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

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Sodium iodide plays an important role in the field of chemical production raw materials, and its upstream and downstream related products are also quite rich. This article will detail the upstream and downstream associated products of sodium iodide.

1. upstream associated products

1. Iodine: The main raw material of sodium iodide is iodine, a non-metallic element, which has strong oxidizing and corrosive properties. Iodine is mainly obtained by seawater extraction, underground brine, well salt and mineral salt.
2. Sodium hydroxide: Sodium hydroxide is another important raw material in the production process of sodium iodide, which is mainly prepared by electrolytic salt water or molten sodium chloride.

2. downstream related products

1. Inorganic iodide: sodium iodide can be used as raw materials to further produce other inorganic iodide, such as potassium iodide, calcium iodide and so on. These inorganic iodides are widely used in medicine, photography, analytical chemistry and other fields.
2. Organic iodides: Sodium iodide can also be used to synthesize various organic iodides, such as iodoform, iodine ether, etc. These organic iodides play an important role in the fields of pharmaceuticals, pesticides, dyes, etc.
3. silver iodide: silver iodide can be prepared by the reaction of sodium iodide and silver nitrate, which is widely used in artificial rainfall, photography, analytical chemistry and so on.
4. Catalyst: Sodium iodide can be used as a catalyst or catalyst carrier for many organic synthesis reactions to improve reaction rate and selectivity.

In short, sodium iodide plays an important role in the field of raw materials for chemical production. Its upstream and downstream related products are quite rich and are widely used in various fields such as medicine, pesticides, dyes, photography, analytical chemistry, etc.

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