Hydrogen Ion Measurement
Creates a logarithmic measure of hydrogen ion concentration.
Historical biography archive · Updated 2026-11-03
Soren Peter Lauritz Sorensen Biography and Timeline
Follow Soren Peter Lauritz Sorensen through 2 dated historical records for Denmark.
Soren Peter Lauritz Sorensen, historical timeline
A chronological timeline drawn from matching World History Database records.
2Distinct records
1 of 1Page
1909–1909Years on this page
1909
pH Scale
Introduces the pH scale for expressing acidity and alkalinity.
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.