You can find the Chemical Technology Laboratory at  Escuela Técnica Superior de Ingenieros Industriales de la Universidad Politécnica de Madrid. 

It is located in Nuevos Ministerios (C/ José Gutiérrez Abascal, 2) sharing building with the Museo de Ciencias Naturales  and is very well comunicated by bus (12 and 45 EMT lines, Pº Castellana-Vitruvio stop), Renfe trains (Nuevos Ministerios station) or tube (Nuevo Ministerios station of the lines 6, 8 and 10 or Gregorio Marañon station in 7 and 10 lines)

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 Inside the ETSI Industriales it is easy to get the laboratory by following the next map: