Scheele, Carl Wilhelm
Scheele, Carl Wilhelm (1742-1786), Swedish chemist, noted for his discovery of a great number of elements, compounds, and chemical reactions. Scheele was born in Stralsund, Germany, which at that time was the capital of Swedish Pomerania. He had no formal training in chemistry and studied the elements of science while apprenticed to an apothecary. In 1770 he came under the guidance of Swedish chemist Torbern Bergman. In 1775 Scheele became the proprietor of a pharmacy in Köping, Sweden, where he continued his chemical research. He is credited with the identification of the elements chlorine and barium, but Scheele believed that they were compounds, not elements. British chemist Sir Humphrey Davy recognized chlorine and barium as elements in the early 1800s. Scheele prepared oxygen from various oxides independently of and somewhat before English chemist Joseph Priestley , who is credited with the discovery of the element. He was the first to prepare many compounds, including tartaric a...