Søren Sørensen | |
---|---|
![]() S. P. L. Sørensen | |
Born | |
Died | 12 February 1939
Copenhagen, Denmark | (aged 71)
Nationality | Danish |
Alma mater | University of Copenhagen |
Known for | pH |
Spouse | Margrethe Høyrup Sørensen |
Scientific career | |
Fields | Chemistry |
Institutions | Carlsberg Laboratory |
Doctoral advisor | Sophus Mads Jørgensen |
Notable students |
Kaj Ulrik Linderstrøm-Lang (postdoc) Edwin Joseph Cohn (postdoc) |
Søren Peter Lauritz Sørensen (9 January 1868 – 12 February 1939) was a Danish chemist, known for the introduction of the concept of pH, a scale for measuring acidity and alkalinity.
Sørensen was born in Havrebjerg Denmark in 1868 as the son of a farmer. He began his studies at the University of Copenhagen at the age of 18. He wanted to make a career in medicine, but under the influence of chemist Sophus Mads Jørgensen decided to change to chemistry. [1]
While studying for his doctorate he worked as assistant in chemistry at the laboratory of the Technical University of Denmark, assisted in a geological survey of Denmark, and also worked as a consultant for the Royal Navy Dockyard. [1]
Sørensen was married twice. His second wife was Margrethe Høyrup Sørensen, who collaborated with him in his studies. [1]
From 1901 to 1938, Sørensen was head of the prestigious Carlsberg Laboratory, Copenhagen. [2] While working at the Carlsberg Laboratory he studied the effect of ion concentration on proteins [3] and, because the concentration of hydrogen ions was particularly important, he introduced the pH-scale as a simple way of expressing it in 1909. [4] The article in which he introduced the scale (using the notation ) was published in French and Danish as well as in German [5] described two methods for measuring acidity which Sørensen and his students had refined. [6] The first method was based on electrodes, whereas the second involved comparing the colours of samples and a preselected set of indicators. (Sørensen, 1909).
Søren Sørensen | |
---|---|
![]() S. P. L. Sørensen | |
Born | |
Died | 12 February 1939
Copenhagen, Denmark | (aged 71)
Nationality | Danish |
Alma mater | University of Copenhagen |
Known for | pH |
Spouse | Margrethe Høyrup Sørensen |
Scientific career | |
Fields | Chemistry |
Institutions | Carlsberg Laboratory |
Doctoral advisor | Sophus Mads Jørgensen |
Notable students |
Kaj Ulrik Linderstrøm-Lang (postdoc) Edwin Joseph Cohn (postdoc) |
Søren Peter Lauritz Sørensen (9 January 1868 – 12 February 1939) was a Danish chemist, known for the introduction of the concept of pH, a scale for measuring acidity and alkalinity.
Sørensen was born in Havrebjerg Denmark in 1868 as the son of a farmer. He began his studies at the University of Copenhagen at the age of 18. He wanted to make a career in medicine, but under the influence of chemist Sophus Mads Jørgensen decided to change to chemistry. [1]
While studying for his doctorate he worked as assistant in chemistry at the laboratory of the Technical University of Denmark, assisted in a geological survey of Denmark, and also worked as a consultant for the Royal Navy Dockyard. [1]
Sørensen was married twice. His second wife was Margrethe Høyrup Sørensen, who collaborated with him in his studies. [1]
From 1901 to 1938, Sørensen was head of the prestigious Carlsberg Laboratory, Copenhagen. [2] While working at the Carlsberg Laboratory he studied the effect of ion concentration on proteins [3] and, because the concentration of hydrogen ions was particularly important, he introduced the pH-scale as a simple way of expressing it in 1909. [4] The article in which he introduced the scale (using the notation ) was published in French and Danish as well as in German [5] described two methods for measuring acidity which Sørensen and his students had refined. [6] The first method was based on electrodes, whereas the second involved comparing the colours of samples and a preselected set of indicators. (Sørensen, 1909).