Many of our medicines and snacks will have dry bags in the packaging, usually with precautions such as "do not eat" and "please discard" printed on them. In fact, there are two commonly used desiccants, namely lime desiccant and silica gel desiccant. Lime desiccant is cheap, and in recent years there have been news about children accidentally eating or playing with water explosions. From a safety point of view, silica gel desiccant is more suitable.
But, should we really follow the note "please discard" on the package?
Experts verified that, in fact, silica gel desiccant has many magical uses, and it can "turn waste into treasure" in just a few steps.
Chemical experts pointed out that when planting flowers and trees, the silica gel desiccant is poured out and mixed into the soil to be used as fertilizer-in fact, silica gel fertilizers are already on the market. Silica, the main component of silica gel, has the effect of promoting photosynthesis of plants.
The natural desiccant used to save overwhelming mobile phones was circulated on the Internet, namely rice. In fact, if we keep some silica gel desiccant, its drying and water absorption effect is far better than rice. Put silica gel desiccant in the container, turn off the mobile phone, disassemble the battery and other parts, and put it in the silica gel desiccant. Generally speaking, the problem will not be big after 24 hours.
The same water absorption function of silica gel desiccant can also solve the problem of camera lens fogging. Generally, experts will recommend buying a drying oven for this kind of problem, but considering the cost, in fact, silica gel desiccant is a better choice. After removing the camera’s battery and memory card, put the camera in a food container filled with silica gel desiccant particles and let it stand for a while, which should prevent condensation on the lens. Secondly, although underwater cameras usually have a dedicated waterproof box, a little bit of moisture or moisture will cause the camera to "scrap". Putting two or three packs of silica gel desiccant in the waterproof box in advance can play a certain preventive effect.
Silica gel desiccant is insoluble in water and any solvent, non-toxic, tasteless, chemically stable, and does not react with any substance except strong alkali and hydrofluoric acid. The inside of silica gel desiccant is a very fine pore network structure. These pores can absorb water and retain water through its physical attraction. Aviation parts, computer devices, electronic products, leather products, medicine, food and other industries . Even if the desiccant is completely immersed in water, it will not soften or liquefy. It has the characteristics of non-toxic, odorless, non-corrosive and non-polluting, so it can be in direct contact with any object.
Experts reminded that the effect of small-dose desiccants in food and pharmaceutical packaging is limited. If you really need to protect items from moisture, you still have to buy a certain amount of desiccant. in.