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 (m2 / g)

Pore volume: The total volume of pores per gram of silica gel.

Unit: milligram / 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 is saturated with water vapor at a certain relative humidity. At this time, the amount of water vapor adsorbed is called the adsorption capacity.

unit:%

Bulk density: The ratio of the mass of silica gel to the volume of the stacked space.

Unit: grams / liter (g / l)

PH value: It is defined as the negative logarithm of hydrogen ion concentration. The PH value of silica gel refers to the PH value of a certain proportion of silica gel aqueous solution after being processed under certain conditions.

Specific resistance: It is an index indicating the purity of silica gel. The specific resistance itself is defined as the resistance of the solution at a distance of 25px. 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 (ΩNaN)

Abrasion rate: It is an indicator of the wear resistance of silicone. Refers to the loss of silicone wear under certain conditions.

unit:%

No bursting rate in water: It is an indicator of water resistance of water-resistant silicone.

unit:%