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[Chemical Knowledge]：Production and manufacturing method and process of red phosphorus

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red phosphorus manufacturing method

1. introduction

red phosphorus is an important chemical production of raw materials, widely used in pesticides, matches, fireworks, ceramics, glass and other industries. Therefore, it is of great significance to study the manufacturing method of red phosphorus for improving production efficiency, reducing costs and improving product quality. This article will introduce a common red phosphorus manufacturing method.

2. Materials and Equipment

1. Materials: yellow phosphorus, water, sodium hydroxide.
2. Equipment: reaction kettle, agitator, condenser, centrifuge, dryer, etc.

3. manufacturing method

1. yellow phosphorus into the reaction kettle, add the right amount of water, stir well.
2. slowly add sodium hydroxide solution, continue to stir, the reaction generates phosphoric acid and sodium phosphite.
3. the reaction solution is heated to 80-90 DEG C, continue to stir, make phosphoric acid and sodium phosphite fully react, generate red phosphorus precipitate.
4. The reaction solution was cooled to room temperature, and the red phosphorus precipitate was separated by a centrifuge and washed with clean water until neutral.
5. Put the washed red phosphorus precipitate into a dryer and dry to a constant weight to obtain a finished red phosphorus.

4. precautions

1. Pay attention to safety during operation and avoid contact with fire and heat sources.
2. The reaction kettle should be sealed to prevent gas leakage.
3. The reaction temperature and pH value should be controlled during operation to ensure product quality.
4. Waste shall be properly disposed of to avoid environmental pollution.

5. Conclusion

By the above method, we can successfully produce red phosphorus. In the production process, we need to pay attention to safety, control the reaction conditions and operation process to ensure product quality and production efficiency. At the same time, we should also actively explore new manufacturing methods and technologies to improve the production level of red phosphorus and contribute to the development of the chemical industry.

The above is a red phosphorus manufacturing method, and the specific operation process needs to be adjusted and optimized according to the actual situation. At the same time, in order to ensure production safety and product quality, it is also necessary to strictly abide by relevant regulations and standards, and strengthen production management and quality control. It is hoped that through the introduction of this paper, we can have a deeper understanding and understanding of the manufacturing method of red phosphorus.

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