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[Chemical Knowledge]：Production and manufacturing method and process of potassium iodide

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The manufacturing method
of potassium iodide
1. Introduction

potassium iodide is an important inorganic salt, which is widely used in chemical industry, medicine, photography and other fields. In the field of raw materials for chemical production, a method for producing potassium iodide has attracted much attention. This article will introduce the manufacturing method of potassium iodide in detail, including raw material selection, reaction principle, operation steps, equipment requirements and precautions.

2. raw material selection

manufacturing potassium iodide is the main raw material of iodine and potassium hydroxide. Iodine is a non-metallic element with a special odor, and the common forms are solid iodine and iodine aqueous solution. Potassium hydroxide is a strong base, usually in solid form. In order to ensure product quality, raw materials with higher purity should be selected.

3. reaction principle

potassium iodide is produced by the chemical reaction of iodine and potassium hydroxide. The specific reaction equation is as follows:

I2 2KOH → 2KI H2O

In this reaction, iodine reacts with potassium hydroxide to produce potassium iodide and water.

4. operation steps

1 ingredients: according to a certain proportion of iodine and potassium hydroxide into the reaction kettle.
2. Stirring: Turn on the stirrer to mix the raw materials thoroughly.
3. Reaction: at a certain temperature, let the raw materials fully react in the reactor.
4. Filtration: After completion of the reaction, the product is separated from the unreacted starting material by means of a filtration apparatus.
5. Washing: The product is washed with an appropriate amount of water to remove impurities.
6. Drying: The product was dried to obtain the final potassium iodide product.

5. equipment requirements

In order to ensure the smooth progress of the manufacturing process, the following equipment needs to be used:

1. Reactor: used to hold raw materials and perform chemical reactions.
2. Stirrer: used to stir the raw materials and promote the reaction.
3. Thermometer and heating device: used to control the reaction temperature.
4. Filtration equipment: used to separate the product from unreacted starting materials.
5. Washing equipment: used to wash the product and remove impurities.
6. Drying equipment: used to dry the product to obtain the final potassium iodide product.
Precautions for
6.

1. During the manufacturing process, the reaction temperature and time should be strictly controlled to ensure that the reaction is complete.
2. Use high purity raw materials to ensure product quality.
3. During the operation, pay attention to safety and avoid contact with skin or inhalation of potassium iodide dust.
4. After manufacturing, the equipment should be cleaned and maintained for the next use.

7. Conclusion The manufacturing method of

potassium iodide includes raw material selection, reaction principle, operation steps, equipment requirements and precautions. By mastering these points, high-quality potassium iodide products can be produced, which provides important raw material support for the chemical production field. In the actual production process, the manufacturing methods and parameters should be flexibly adjusted according to specific needs and conditions to achieve the best production results.

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