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What kind of food packing bags of desiccant are there

Author:plastic bag supplier    Time:16/05/19    Click:

What kind of food packing bags of desiccant are there

Food packaging in general is caustic lime

The wardrobe is mostly calcium chloride
 
Chemical general use soda-lime, anhydrous copper sulfate, 5 oxidation 2 p, sulfuric acid, calcium chloride and so on
 
Copper sulfate, if the crystal is not dry, can only use anhydrous copper sulfate (white), generally do not as a desiccant, only for testing water (blue).
 
Hydrated lime is calcium sulphate, crystal water absorption can be formed, gypsum, but the effect is very poor, is generally not as a desiccant
 
Iron can be generated with oxygen and water oxidation rust, but the response is too slow.
 
Alternative: quick lime, hydrated lime, iron, copper sulfate
It can only choose quick lime.
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