Aluminum oxide (Al2O3) is a common compound in aluminum chemistry and is often used as a catalyst or abrasive material.

Aluminum chloride (AlCl3) is a compound used in various industrial processes, such as in the production of aluminum.

Aluminum nitrate (Al(NO3)3) is a compound used in various industrial applications, including in the production of aluminum-based chemicals.

Aluminum sulfate (Al2(SO4)3) is a compound used in water treatment and as a coagulant in the purification of drinking water.

Aluminum hydroxide (Al(OH)3) is a compound used in antacid medications and as a flame retardant.

Sodium aluminate (Na3AlO3) is a compound used in water treatment and as a flocculant in wastewater treatment processes.