Why does the desiccant explode when encountering water

Introduction: the main reason why the desiccant explodes when encountering water is the composition of the desiccant, including the fact that the slide cover and water absorption become calcium hydroxide, which will directly release a lot of heat When the air expands rapidly, it will directly cause explosion   The news that desiccant will explode when encountering water can be seen everywhere, so why does desiccant explode when encountering water? The main reason is from the components of the desiccant, because the components of the desiccant include calcium oxide, which will become calcium hydroxide after absorbing water, which will directly cause a large number of heat, and will cause explosion when the air expands rapidly Now, let's invite Baibai safety net to introduce in detail why the desiccant explodes when encountering water? What is the power of desiccant when it meets water? You can test it through small experiments For example, you can buy back the food with desiccant from the market, including biscuit (deacidifying agent), rice cake (deoxidizing agent), melon seeds (deoxidizing agent) and seaweed (lime desiccant) The components of desiccant are different There are two kinds of desiccants, one is calcium oxide（ Commonly known as quicklime), one is silica gel The properties of silica gel are relatively stable, and there is no obvious reaction when encountering water The desiccant in seaweed is quicklime, 25 grams per pack The package is written with the words "strong desiccant, inedible, not soaked, not opened, not touched by children" Put 3 bags of desiccant into the heat preservation cup together, add 70 ℃ hot water, and cover the cup cover, which is not completely sealed In less than 30 seconds, the lid was lifted and the water overflowed Open the lid and you can see that the water is still boiling Two minutes later, the thermos didn't explode Xiaobian thinks that the desiccant in the sea moss may have been damped In addition, the cup cover is not sealed, and the energy accumulation is not enough I'm going to add more desiccant and less water To sum up, "why does desiccant explode when encountering water" will be mentioned here today What should children do if they eat desiccant by mistake? What are the hazards of desiccant? We will continue to discuss these problems with you in the future Then in normal life, we must pay attention to the proper handling of food, especially the desiccant in food To learn more about food additives and food safety, you can directly log in to Baibai safety net Editor in charge: he xianrob