Al(OH)₃, or aluminum hydroxide, is a chemical compound made up of aluminum, oxygen, and hydrogen. It appears as a white, gelatinous substance and is commonly used in various applications, including as an antacid to relieve heartburn and indigestion. In nature, it can be found in minerals like gibbsite, which is an important source of aluminum. In addition to its use in medicine, Al(OH)₃ plays a role in water purification and as a flocculant in the treatment of drinking water. It helps to remove impurities by clumping them together, making it easier to filter them out. This compound is also used in the production of aluminum salts and as a filler in some products.