Johannes Nicolaus Bronsted (1879-1947), Danish physical chemist. Bronsted qualified in chemical engineering in 1897, and then in chemistry in 1902 in
Johannes Nicolaus Bronsted (1879-1947), Danish physical chemist. Bronsted qualified in chemical engineering in 1897, and then in chemistry in 1902 in Copenhagen. He taught there from 1905. He worked mainly in electrochemistry and reaction kinetics, applying thermodynamics to chemical problems. He is best known for a definition of acids and bases, introduced independently but simultaneously in 1923 with Lowry of Cambridge. This, the Bronsted-Lowry definition, defines an acid as a substance with a tendency to lose a proton, and a base as a substance that tends to gain a proton.
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