Silica gel can be classified into two categories






One is organic silica gel. With high temperature resistance, electrical insulation and other characteristics, it is generally used in special fields, such as aviation, military technology departments and so on.






One is inorganic silica gel. Inorganic silica gel is more common in daily life, such as desiccant, keyboard keys, mouse pad and so on, which are generally used in drying, moisture-proof and general carrier.










Silica gel is divided into organic and inorganic because of its different properties and molecular structure.






Inorganic silica gel is a kind of highly active adsorption material, which is usually prepared by the reaction of sodium silicate and sulfuric acid, aging, acid bubble and a series of post-treatment processes. Various types of silica gel have different microporous structures due to different manufacturing methods.










Organic silica gel is a kind of organic silicon compound, which contains Si-C bond and at least one organic group is directly connected with silicon atom. It is also used to treat those compounds that connect organic group with silicon atom through oxygen, sulfur, nitrogen, etc. as organic silicon compounds. Now qualified regular food grade silica gel factory are using organic silica gel