This brief draws on the first modern book about Carl Wilhelm Scheele which was published in Swedish in 2015. Following an introduction and bibliography of Scheele’s published works, the author analyses Scheele’s publications paragraph by paragraph, explaining the procedures and the results in modern terms, and summarising and elucidating Scheele’s conclusions. Up until now the original works by Scheele have only in part been translated into English, and to get a complete view of Scheele’s work, knowledge of both Swedish and German was required. This brief opens up the important work of Carl Wilhelm Scheele to an international audience of historians of chemistry, students of history of chemistry and interested chemists.

This book tells the story of two of the most important figures in the history of chemistry. Carl Wilhelm Scheele (1742–1786) was the first to prepare oxygen and realise that air is a mixture of nitrogen and oxygen; he also discovered many important organic and inorganic substances. His fellow chemist and good friend, Torbern Bergman (1735–1784), was one of the pioneers in analytical and physical chemistry. In this carefully researched biography, the author, Anders Lennartson, explains the chemistry of Scheele and Bergman while putting their discoveries in the context of other 18th-century chemistry. Much of the information contained in this work is available in English for the first time.

Carl Wilhelm Scheele (1742-1786) was a German-Swedish pharmaceutical chemist, born in Stralsund, Western Pomerania, Germany. Instead of becoming a carpenter like his father, Scheele decided to become a pharmacist. His career began with his apprenticeship at an apothecary in Gothenburg when he was only fourteen years old. He retained this position for eight years before becoming an apothecary's clerk in Malmo. Then Scheele worked as a pharmacist in Stockholm, from 1770-1775 in Uppsala, and later in Koping. In 1776, he was able to establish his own pharmacy. He was the discoverer of many chemical substances, most notably discovering oxygen (although Joseph Priestley published his findings first), molybdenum and chlorine before Humphry Davy. Scheele described the discovery of oxygen and nitrogen (1772-1773), in his only book, Chemische Abhandlung von der Luft und dem Feuer (Chemical Treatise on Air and Fire) in 1777. He called it "fire air" because it supported combustion, but he explained oxygen using phlogistical terms because he did not believe that his discovery disproved the phlogiston theory.

Although poisonous substances have been a hazard for the whole of human history, it is only with the development and large-scale production of new chemical substances over the last two centuries that toxic, manmade pollutants have become such a varied and widespread danger. Covering a host of both notorious and little-known chemicals, the chapters in this collection investigate the emergence of specific toxic, pathogenic, carcinogenic, and ecologically harmful chemicals as well as the scientific, cultural and legislative responses they have prompted. Each study situates chemical hazards in a long-term and transnational framework and demonstrates the importance of considering both the natural and the social contexts in which their histories have unfolded.

A thorough history. Lactic acid's chemistry has posed problems that required the large-scale preparation of the acid for study; its manufacture is a complicated process involving many subdisciplines of the science of chemistry; its use encompasses many fields of industrial activity and important asp