What's the matter with desiccant perm

Introduction: desiccant perm is often encountered, so how is desiccant perm? Get to know about it through Baibai safety net Desiccant is a kind of high-efficiency adsorption material It adsorbs water molecules by chemical means to achieve the adsorption effect and play the role of moisture-proof Then what's the matter with desiccant burning? Through the safety net of Baibai, we have a detailed knowledge of food additives General desiccant is mainly quicklime desiccant and silica gel desiccant, there will be different heating phenomenon Quicklime is calcium oxide (white solid powder can be seen after opening the packaging bag) It will react exothermically with water to generate calcium hydroxide, namely hydrated lime Obviously, when there is more water, the heat release will be more obvious In addition, there are also desiccants that are not exothermic, and different products have certain choice The inside of silica gel desiccant is a hole Once water molecules enter, it will expand After expansion, there will be friction between silica gel and heat will be generated This is normal, indicating that the desiccant has good moisture absorption effect Through understanding, we know that desiccant heating is a very common thing If you want to know what hazards desiccant has and food safety tester knowledge, you can go to Baibai safety net, where there are a lot of food safety knowledge Editor in charge: he xianrob