http://tags.library.upenn.edu/tag/chemical_technology PennTags Feed http://tags.library.upenn.edu/makerecord/url/235 http://tags.library.upenn.edu/makerecord/url/235 This encyclopedia presents "facts on the properties, manufacturing, and uses of chemicals and materials, processes, and engineering principles, coupled with insights into current research, emerging technologies and economic aspects. Environmental and health concerns are also addressed."