The specific gravity of activated alumina is usually between 3.5 and 3.9, which makes it have good stability and operability during the treatment process. The size of specific gravity directly affects the bulk density and pore structure of activated alumina, which in turn affects its adsorption performance and catalytic activity.

Physical characteristics: In addition to specific gravity, activated alumina also has physical characteristics such as porosity and high dispersion. These properties make activated alumina have a huge surface area and excellent adsorption properties, and can fully contact and act with reactants or adsorbents.

Performance relationship: The specific gravity of activated alumina is closely related to its adsorption properties and catalytic activity. Generally speaking, activated alumina with moderate specific gravity has better bulk density and pore structure, which can provide more active sites for reactants to adsorption and reaction. Therefore, in practical applications, it is necessary to select an activated alumina in a suitable specific gravity range according to specific needs.