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

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Potassium iodide plays an important role in the field of raw materials for chemical production, and its upstream and downstream related products are also quite rich. The following will detail the upstream and downstream associated products of potassium iodide.

upstream products:

1. iodine: iodine is the key raw material for the preparation of potassium iodide. Iodine is usually extracted from seaweed, underground brine formations, natural gas fields and mineral water. Globally, Chile leads the production of iodine.
2. potassium hydroxide: potassium hydroxide is also an important raw material for the preparation of potassium iodide. It can be made from salt water by electrolysis.

downstream products:

1. silver iodide: potassium iodide can be used as a raw material for the preparation of silver iodide. Silver iodide is widely used in photography, artificial rainfall and radiation measurement.
2. mercuric iodide: mercuric iodide can be generated by the reaction of potassium iodide and mercury salt, which is an important analytical reagent for the determination of chlorine, bromine, iodine and other elements.
3. Iodide: Potassium iodide can be used as a raw material for the preparation of other iodides, such as sodium iodide, calcium iodide, etc. These iodides are widely used in medicine, food, analysis and other fields.
4. chemical reagent: potassium iodide itself is also an important chemical reagent, used in analytical chemistry, organic chemistry, inorganic chemistry and other fields.

In general, potassium iodide is rich in upstream and downstream related products in the field of chemical production raw materials, and its application range is wide. However, in different production processes and processes, the specific upstream and downstream associated products of potassium iodide may be different. Therefore, in the actual production process, it is necessary to determine the upstream and downstream associated products of potassium iodide according to the specific production process and process.

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