What is the titration invented by the Danish chemist famous for the concept of pH used for?
S. P. L. Sørensen Søren Peder Lauritz Sørensen (9 January 1868 – 12 February 1939) was a Danish chemist, famous for the introduction of the concept of pH, a scale for measuring acidity and alkalinity. He was born in Havrebjerg, Denmark.
Theodor Seliwanoff Theodor Seliwanoff (or Seliwanow), born as Fedor Fedorovic Selivanov (October 8, 1859 in Gorodischtsche, Pensa–1938) was a Russian chemist who invented the Seliwanoff's test in 1887 while working in Metchnikow University of Odessa in Odessa, Ukraine.