Safety properties of silica gel and the problem of the regeneration of silica gel-Iota

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Service > Safety properties of silica gel and the problem of the regeneration of silica gel

Safety properties of silica gel and the problem of the regeneration of silica gel

Silica gel is the main ingredient is silica, the chemical nature is stable, does not burn. Silica gel is a kind of amorphous silicon dioxide, should control the workshop dust content is not more than 10 mg / cubic meter, need to strengthen the exhaust, the operation wear masks.
Silica gel has a strong adsorption capacity, the human skin can produce a dry effect, therefore, the operation should wear a good working clothes. If silica gel into the eyes, need to use a lot of water to wash, and seek medical treatment as soon as possible. Blue silica gel because of the presence of a small amount of cobalt chloride, toxic, should avoid contact with food and food, such as the occurrence of poisoning should immediately seek medical treatment. Silica gel in the use of the process of adsorption of water vapor or other organic matter, the adsorption capacity of the decline, can be reused after regeneration.
Problems in the regeneration of silica gel
The drying regeneration should pay attention to the master gradually increase the temperature, to avoid burst particles caused severe drying, reduce the recovery rate.
Exept of silica gel roasting regeneration, the temperature is too high will cause changes in pore structure of silica gel and significantly reduce the adsorption effects, the impact of use value. For the blue gel indicator or the color of the silica gel, the temperature of the regeneration should be no more than 120,
Otherwise, it will be lost by the color of the color rendering agent.
3 the regenerated silica should generally be sifted to remove fine particles, so that uniform particles.
Storage and packaging
Silica gel has strong moisture absorption ability, therefore should be stored in dry place, the packing material and the ground to have a shelf. There are steel drums, drum packaging, cartons, plastic bottles, plastic compound bag, flexible container bags etc.. Specific packaging specifications see classification products. Avoid rain, moisture and exposure should be in the process of transportation.

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