Anhydride is an oxide of an element or organicradical, capable of combining with water to form an acid. Nearly all the non-metallic elements, as well as several of the metallic elements form
anhydrides. Thus sulphuric anhydride, SO3, with water makes sulphuric acid. Research Anhydride
 
The Probert Encyclopaedia was designed, edited and programed by
Matt and Leela Probert