The Brønsted-Lowry theory is a definition of acids and bases that was proposed independently in 1923 by the Danish chemist Johannes Brønsted and the English chemist Thomas Lowry. It defines an acid as a substance that donates a proton and a base as one that accepts a proton. This widened the earlier Arrhenius definition, which was limited to water solutions, and it can be applied to reactions in other solvents or even in gases. The theory introduced the idea of conjugate acid-base pairs, in which an acid that loses a proton becomes its conjugate base. It is a standard part of chemistry teaching alongside the Lewis definition, which was also published in 1923.
Before and after
- 24 December 1922Birth of Ava Gardner
- 30 December 1922Treaty on the Creation of the Union of Soviet Socialist Republics
- from 30 December 1922 to 26 December 1991Soviet Union
- 1923Rise of serialism
- 1923Brønsted–Lowry acid–base theory
- 1923Construction of Forbidden City
- from 11 January 1923 to 25 August 1925Occupation of the Ruhr
- 4 February 1923Birth of Conrad Bain
- 10 February 1923Death of Wilhelm Röntgen
More in Science & technology
- 2 November 1920KDKA begins the first commercial radio broadcasts
- 1931Big Bang theory proposed
- 1931Kurt Godel proves his incompleteness theorems
- 1939Discovery of francium
- 1 February 1942Launch of Voice of America
- 18 December 1944Launch of Le Monde
The era
This moment belongs to the Modern era (1914 CE to 1945 CE), world wars and a changing world. You can also browse everything in the 20th century.