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.
Elizabeth Fulhame Elizabeth Fulhame (fl. 1794) was a Scottish chemist who invented the concept of catalysis and discovered photoreduction. She describes catalysis as a process at length in her 1794 book "An Essay On Combustion with a View to a New Art of Dying and Painting, wherein the Phlogistic and Antiphlogistic Hypotheses are Proved Erroneous." The book relates in painstaking detail her experiments with oxidation-reduction reactions, and the conclusions she draws regarding Phlogiston theory, in which she disagrees with both the Phlogistians and Antiphlogistians.