Specific surface: refers to the surface area per gram of silica gel, including the sum of the internal micropore surface area and the external surface area. --Unit: square meter/gram

Pore volume: The total volume of the internal pores per gram of silica gel. --Unit: milliliter/gram (ml/g)

Pore diameter: refers to the diameter of the micropores inside the silica gel. --Unit: Angstrom (A 0 ) or nanometer (nm) 1nm=10A 0

Adsorption capacity: Silica gel absorbs water vapor at a certain relative humidity to reach saturation, and the amount of adsorbed water vapor at this time is called adsorption capacity. --unit:%

Bulk density: the ratio of the mass of silica gel to the volume of the space it is packed in. --Unit: grams per liter (g/l)

PH value: The pH value of silica gel refers to the pH value of a silica gel aqueous solution containing a certain proportion after treatment under certain conditions.

Specific resistance: It is an indicator of the purity of silica gel. The specific resistance itself is defined as the resistance of the solution at a distance of 1 cm. The specific resistance of silica gel refers to the dissolution of water-soluble electrolyte in silica gel after treatment under certain conditions, and the specific resistance of the solution is measured by conductivity. The higher the specific resistance, the lower the amount of water-soluble electrolyte contained in silica gel. --Unit: ohm.cm (Ω.cm)

Abrasion rate: It is an indicator of the wear resistance of silica gel. It refers to the loss of silica gel abrasion under certain conditions. --unit:%

Non-explosive rate in case of water: It refers to an indicator of the water resistance of water-resistant silicone. --unit: