Johannes Nicolaus Brønsted
|Johannes Nicolaus Brønsted|
Portrait of Johannes Brønsted
22 February 1879|
|Died||17 December 1947
|Alma mater||University of Copenhagen|
|Known for||Brønsted-Lowry acid-base theory
Brønsted catalysis equation
|Institutions||University of Copenhagen|
Johannes Nicolaus Brønsted (Danish: [joˈhanˀəs ˈneɡolɑwˀs ˈbʁɶnsdɛð]; 22 February 1879 – 17 December 1947) born in Varde, was a Danish physical chemist. He earned a degree in chemical engineering in 1899 and his Ph.D. in 1908 from the University of Copenhagen and was immediately thereafter appointed professor of inorganic and physical chemistry at the same university.
In 1906 he published the first of his many papers on electron affinity, and, simultaneously with the English chemist Thomas Martin Lowry, he introduced the protonic theory of acid-base reactions in 1923. That same year, Gilbert N. Lewis proposed an electronic theory of acid-base reactions, but both theories remain commonly used.
- "Johannes Nicolaus Brønsted". Encyclopædia Britannica. Retrieved March 28, 2012.
- "Johannes Nicolaus Brønsted". Chemistry Explained. Retrieved March 28, 2012.
- "Johannes Nicolaus Brønsted". Volny.
- J. N. Brönsted (1923) "Einige Bemerkungen über den Begriff der Säuren und Basen" (Some observations about the concept of acids and bases), Recueil des Travaux Chimiques des Pays-Bas, 42 (8) : 718-728.
- T. M. Lowry (1923) "The uniqueness of hydrogen," Journal of the Society of Chemical Industry, 42 (3) : 43-47.