Safety Performance of Silica gel
Silica gel is mainly composed of silica, which have stable chemical properties and nonflammable. .Silica gel is a kind of amorphous silica, which needs to be forced to exhaust due to the control of dust content of 10mg-m in the workshop.
Silica gel has a strong adsorption ability, can produce a dry effect on the skin.Accordingly, the workes should wear good overalls when making .If silicone is in the eye, rinse with plenty of water and seek medical treatment as soon as possible.
As Blue silica gel content of a small amount of cobalt oxide, so it is toxic and should avoid it contact with food and inhalation mouth, If poisoning occurrence should immediately seek medical treatment.Regeneration of Silica gel
In the use of the process, due to the adsorption of water vapor or other organic substances in the medium, adsorption capacity of silica gel is decreases, but can be reused through regeneration.
(1) regeneration of silica gel after adsorption of water vapor.
(2) regeneration of silica gel after adsorption of organic impurities.(3)Problems in silica gel regeneration:
When drying and regenerating, the temperature should be gradually increased, so as to avoid the silicon cracking caused by severe drying and reduce the recovery rate.
When the silica gel is roasted and regenerated, too high temperature will cause the structure change of silica gel pore and significantly reduce its adsorption effect, affecting the use value.For blue glue indicator or color changing silica gel, the temperature of desorption regeneration should not exceed 120℃, otherwise the color development will be lost due to the progressive oxidation of the color developer.After regeneration, silica gel should be sifted to remove fine particles to make the particles uniform.Storage and Packaging of Silica gel
Silica gel has a strong moisture absorption ability, so it should be stored in a dry place.There should be shelves between the packing and the ground.Packing materials are steel drums, paper drums, cartons, plastic bottles, polyethylene plastic composite bags, flexible container bags.Specific packing specifications are shown in the classified product description.
When transportation should avoid rain, moisture and exposure to the sun.