Ullmann's Encyclopedia of Industrial Chemistry This link opens in a new windowUllmann's Encyclopedia of Industrial Chemistry is a state-of-the-art reference work detailing the science and technology in all areas of industrial chemistry. Subject areas include: inorganic and organic chemicals, advanced materials, pharmaceuticals, polymers and plastics, metals and alloys, biotechnology and biotechnological products, food chemistry, process engineering and unit operations, analytical methods, environmental protection, etc.