Alumina Trihydrate has a number of common names used throughout the chemical industry which include: Hydrate Alumina, Alumina Hydrate, Aluminium Tri Hydroxide, ATH, Aluminium Hydrate and Aluminium Hydroxide. Alumina Trihydrate is a white, odorless, powdery, solid substance. Alumina Trihydrate demonstrates a very low solubility in water but is considered to be amphoteric, meaning it will dissolve in both acids or a strong alkali. The most common use of Alumina Trihydrate is for the production of aluminum metal. It is also used as a flame retardant and smoke suppressant filler in polymers such as rubber products and carpet backing.