Is desiccant flammable and explosive ?

Issuing time:2023-08-14 11:10

Desiccants are very common in our life, and they are mainly divided into silica gel desiccant, live mineral desiccant, montmorillonite desiccant, calcium chloride desiccant, quicklime desiccant, etc. Many people have such a question: Are desiccants flammable and explosive?

Silica gel desiccant: The characterized of goods is stability and high temperature resistance. In the process of producing silica gel desiccant, it needs to be dried at high temperature. Therefore, after the silica gel desiccant is baked at a high temperature above 120°C, it can be reused. So silica gel desiccant is not flammable.

②Live ore desiccant: It is a pure natural mineral desiccant, mainly made of natural attapulgite clay taken from nature as the main raw material, and is made by physical methods such as granulation and high-temperature drying. Drying, so the live mineral desiccant is also non-flammable.

③Montmorillonite desiccant: It is made of pure natural montmorillonite by drying and activation. The raw material itself is stone and can withstand high temperature, so it is obvious that montmorillonite desiccant is not flammable.

④Calcium chloride desiccant: Anhydrous calcium chloride and calcium chloride dihydrate are used as the main raw materials. The melting point is as high as 772°C and the boiling point is as high as 1600°C. It also needs to be dried at high temperature during the production process, so calcium chloride is dried Agents are not flammable.

⑤Lime desiccant: The main component is calcium oxide (CaO), which itself requires limestone to be burned at a high temperature above 1200°C. Therefore, under normal operation, the quicklime desiccant will not have the risk of "explosion". If the amount is sufficient, the reaction can release enough heat. When the temperature reaches a certain value, the water vapor will expand rapidly, increasing the pressure in the confined space. Quicklime desiccant is not flammable.

In summary, from the raw materials and processing of various desiccants, they are not flammable. However, most of the desiccant packaging materials are combustible, and the packaging carton of the desiccant is also combustible. Therefore, for the finished desiccant, it is still necessary to keep away from open flames, and it is also necessary to pay attention to it during storage.

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