Main components of lime desiccant
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Last Update: 2017-05-21
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Source: Internet
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Author: User
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Introduction: lime desiccant is a kind of desiccant The main components of lime desiccant include calcium carbonate and calcium oxide Mainly to prevent food or goods from getting damp We have talked about a lot of knowledge about desiccant before I believe you know something about desiccant, so today we mainly introduce lime desiccant, which is widely used in food, electronic products and chemical industry products But what are the main ingredients of lime desiccant! What are the hazards of desiccant? Please introduce the small edition of Baibai safety net in detail The main component of quick lime desiccant is calcium oxide, whose water absorption capacity is realized by chemical reaction, so water absorption is irreversible Regardless of the external environment humidity, it can maintain more than 35% moisture absorption capacity of its own weight, which is more suitable for low temperature preservation, with excellent drying and moisture absorption effect and low price Can be widely used in food, clothing, tea, leather, shoemaking, electrical and other industries This type of desiccant is currently used in the most common "snow cake" However, due to its strong alkali corrosiveness, quick lime desiccant often causes damage to the eyes of children or the elderly, which has been gradually eliminated Calcium oxide reacts with water to generate calcium hydroxide, which is exothermic in the process Calcium hydroxide will turn phenolphthalein solution red, pass into carbon dioxide, generate calcium carbonate, which is insoluble in water, so the liquid becomes turbid, hydrochloric acid reacts with calcium carbonate, and carbon dioxide will be released Above we mainly introduce the main components of lime desiccant You can directly log in to Baibai safety net for the little knowledge about food additives and food safety We must pay attention to the reaction of raw materials and water of quicklime, which will cause fever, so the lime desiccant will also cause certain impact If the lime is unfortunately wrong, it must be treated in the local hospital as soon as possible Editor in charge: he xianrob
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