This application allows users to search for the correct container to dump the waste generated in the practical classes of the degree of Pharmacy of the Faculty of Pharmacy and Food Sciences of the University of Barcelona (UB). In addition, it provides information on the products to be removed: pictograms and H and P phrases (indications of danger and precautionary advice). Residus ULD-UB has been prepared by the Teaching Laboratories Unit (ULD-UB) in collaboration with the Office of Safety, Health and the Environment and the Audiovisual Service of the UB. This application is part of the mobility project of the University of Barcelona.