text: Angelo Sala (Latin: Angelus Sala) (21 March 1576, Vicenza – 2 October 1637, Bützow) was an Italian doctor and early iatrochemist. He promoted chemical remedies and, drawing on the relative merits of the conflicting chemical and Galenical systems of medicine, dismissed alchemical transmutation and universal medicine; objected to tartar which had deliquesced being called an oil; observed that metals reacted differently with acids; that sulphur extracted something from the air in order to burn; that silver nitrate darkened on exposure to light; surmised the existence of elementary (atomic) particles; and described newly discovered compounds and methods of preparation. Sala made the first studies on the formation of alcohol from fermenting musts and so is regarded as the founder of sugar chemistry.