Aluminum hydroxide is an important inorganic compound widely used in industry, healthcare, and material science. It appears as a white, odorless powder or as a gelatinous solid, and it is known for its stable chemical properties and diverse applications. Its chemical formula is Al(OH)₃. As an amphoteric substance, aluminum hydroxide can react with both acids and strong bases, which makes it useful in many chemical processes.One of the main characteristics of aluminum hydroxide is its ability to act as a flame retardant. When exposed to heat, it decomposes endothermically, releasing water vapor and absorbing significant amounts of heat. This process helps to lower the temperature of surrounding materials and reduce the spread of flames. Because of this property, it is commonly added to plastics, rubber, cables, coatings, and other polymer-based products to improve fire safety. It is valued not only for flame resistance but also for its smoke suppression effect, which is important in applications where reducing toxic fumes is a priority.Aluminum hydroxide is also widely used in the field of medicine. It has long been employed as an antacid to neutralize excess stomach acid and relieve symptoms such as heartburn, indigestion, and acid reflux. In some cases, it is used in combination with other compounds to enhance its effectiveness. In addition, it has applications in vaccine formulations as an adjuvant, where it helps stimulate and strengthen the immune response. Its role in healthcare reflects its safety and compatibility when properly prepared and used.In industrial production, aluminum hydroxide serves as a raw material for making aluminum oxide, alumina-based ceramics, and various aluminum salts. It is also used in water treatment, paper manufacturing, dyes, glass production, and polishing materials. In water purification, it can help remove impurities and improve clarity. In paper and coatings, it can improve brightness, smoothness, and texture. These broad uses make it a versatile substance in many technical fields.The physical properties of aluminum hydroxide can vary depending on particle size, crystal form, and preparation method. Fine particles are often preferred for applications requiring smooth dispersion and high performance. The compound is generally considered non-toxic and environmentally friendly compared with some other flame-retardant additives, which contributes to its popularity in modern manufacturing.Overall, aluminum hydroxide is a highly useful compound with a wide range of functions. Its flame-retardant performance, medicinal value, and industrial versatility make it an essential material in many sectors. As demand grows for safer, more sustainable materials, aluminum hydroxide continues to play an important role in product development and technological innovation.