The main component of quicklime desiccant is calcium oxide, and its water absorption ability is realized through chemical reaction, so water absorption is irreversible. No matter the humidity of the external environment is high or low, it can keep the moisture absorption capacity greater than 35% of its own weight, which is more suitable for low-temperature storage, with excellent drying and moisture absorption effect and lower price.

2, silica gel desiccant

This desiccant is a different kind of silica gel, which is packed in a moisture permeable pouch. The main raw material, silica gel, is a kind of water-containing silica with high micropore structure, which is non-toxic, tasteless and odorless, with stable chemical properties and strong moisture absorption.

3, calcium chloride desiccant

The main raw material of calcium chloride desiccant is calcium chloride, which is made of high-quality calcium carbonate and hydrochloric acid through reaction synthesis, filtration, evaporation concentration, drying and refining. White porous block, granular or honeycomb solid. It tastes slightly bitter and tasteless. The aqueous solution is colorless.

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Matters needing attention

1, silica gel can not be absorbed in gastrointestinal tract, but can be excreted through feces. Generally speaking, it is not toxic to human body and does not need special treatment after being taken by mistake. If it enters the eyes, rinse it from the inner corner to the outer corner with clear water.

2. If you take a large amount of iron oxide desiccant, it may lead to nausea, vomiting, abdominal pain, diarrhea and other symptoms, which can be treated symptomatically.

3. If you eat lime desiccant containing calcium oxide by mistake, it is easy to cause esophageal burn or gastric ulcer. You should drink water or milk to dilute and induce vomiting as soon as possible to reduce absorption in the body, but you should not drink too much water to avoid vomiting burning the esophagus again.

4. quicklime, namely calcium oxide, is an alkaline substance, which will turn into hydrated lime when it meets water. In this neutralization reaction process, a lot of heat will be released, which will make gas expand and water expand, and at the same time, it will also produce certain pressure. When the pressure reaches a certain level, it may trigger an explosion reaction.

Baidu encyclopedia-food desiccant

People's Network-Don't ignore the hidden dangers of food desiccant. Eating alkaline desiccant by mistake is the most dangerous.