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Several misunderstandings in judging the water content and adsorption capacity of silica gel desiccant

Popularity:278 Time:2021-10-21 11:12:51
How to judge the quality and water content of the desiccant? Usually we will take a small packet of silica gel desiccant and put it in clean water, and then observe its intensity in the water and the percentage of explosion. If the explosion speed is fast and the effect is strong, it will be considered that the moisture content of the desiccant is very low and the adsorption effect Well, in fact, from a scientific point of view, the explosion rate and percentage of the desiccant in contact with water. In this way, the water content and water absorption of the particles are judged, and there is no big relationship, because the explosion is only instantaneous. In time, silica gel has continuous water absorption performance. This test method also has certain misunderstandings. If the moisture content and adsorption capacity of the environmentally friendly desiccant are correctly judged, let's take a look together below:


The second commonly used method is to take out several unopened packets of desiccant, and then put the blue color-changing silica gel packet and its small packet of environmentally friendly desiccant into a completely sealed space. During this process, observe the discoloration of the color-changing silica gel. Speed, fast discoloration speed proves that the water content of the product is high. This is a more scientific detection method, but the misunderstanding lies in whether the water content of the tested environmentally friendly desiccant exceeds the color-changing silica gel, and if it is selected Different color-changing silica gel manufacturers, due to the different proportions of the added raw materials, will also cause their color-changing silica gel itself to change color differently. Therefore, this method cannot be completely believed.