Acetic acid alumina

Acetic alumina, chemically aluminium diacetate, is an aluminium salt of acetic acid. Aluminium diacetate is a colourless solid with the molecular formula Al(CH3COO)2(OH). Acetic alumina has a disinfecting, cooling and astringent effect. It is used for insect bites, bruises, sprains, strains and joint inflammation.

Commercially, the "Acetic Alumina" is offered as a ready solution composed of sodium aluminate, acetic acid and tartaric acid, the latter to stabilize the solution. It is diluted with water in the ratio 1:10 or 1:15 and used as a poultice.
Acetic clay is also commercially available as a ready-made ointment. Furthermore, it is available as a paste and is then prepared from powdered clay, ceramic powder and water immediately before its application (applications mainly in veterinary medicine).