# S. P. L. Sørensen

> He gave the world a single letter and number that chemists, doctors, pool technicians, and winemakers check every day: the pH scale, the shorthand for how acidic or basic something is.

*Danish chemist*

**Canonical URL:** https://fame.am/person/s-p-l-s-rensen

## Identity
- **Profile type:** Scientist ([Wikidata](https://www.wikidata.org/entity/Q39631))
- **Category:** Scientists
- **Born:** 1868-01-09
- **Died:** 1939-02-12
- **Status:** deceased
- **Gender:** male

## Bio

Søren Peter Lauritz Sørensen was born on 9 January 1868 in Denmark. A chemist by training, he introduced the concept of pH while working to quantify acidity and alkalinity — a measurement problem that had bedeviled labs for decades. The scale he devised became the universal standard, compact enough to fit on a test strip and precise enough to matter in blood, soil, and fermentation tanks. He died on 12 February 1939, seventy-one years old, having left chemistry a tool it uses thousands of times a day.

## Fame
- **Popularity score:** 54.6 / 100
- **Momentum:** 5.5 / 100  (trend: RISING)
- **Historical depth:** 21.5 / 100
- **Now attention:** 0.0 / 100
- **Source confidence:** 60.0 / 100
- **Profile completeness:** 60.0 / 100

## Topics
#Scientists, #Scientist, #Chemistry, #19th Century

## Sources
- [Wikipedia](https://en.wikipedia.org/wiki/S._P._L._S%C3%B8rensen)
- [Wikidata](https://www.wikidata.org/wiki/Q319325)
- [Pantheon 2.0](https://pantheon.world/profile/person/S.%20P.%20L.%20S%C3%B8rensen)
- [Søren Peder Lauritz Sørensen](https://br.wikipedia.org/wiki/S%C3%B8ren_Peder_Lauritz_S%C3%B8rensen)
- [S. P. L. Sørensen](https://bs.wikipedia.org/wiki/S._P._L._S%C3%B8rensen)
- [Søren Peter Lauritz Sørensen](https://ca.wikipedia.org/wiki/S%C3%B8ren_Peter_Lauritz_S%C3%B8rensen)
- [Søren Peder Lauritz Sørensen](https://cs.wikipedia.org/wiki/S%C3%B8ren_Peder_Lauritz_S%C3%B8rensen)
- [Søren Peder Lauritz Sørensen](https://cy.wikipedia.org/wiki/S%C3%B8ren_Peder_Lauritz_S%C3%B8rensen)
- [S.P.L. Sørensen](https://da.wikipedia.org/wiki/S.P.L._S%C3%B8rensen)
- [Søren Sørensen (Chemiker)](https://de.wikipedia.org/wiki/S%C3%B8ren_S%C3%B8rensen_(Chemiker))
- [Σέρεν Σέρενσεν](https://el.wikipedia.org/wiki/%CE%A3%CE%AD%CF%81%CE%B5%CE%BD_%CE%A3%CE%AD%CF%81%CE%B5%CE%BD%CF%83%CE%B5%CE%BD)
- [Søren Sørensen](https://eo.wikipedia.org/wiki/S%C3%B8ren_S%C3%B8rensen)
- [S. P. L. Sørensen](https://es.wikipedia.org/wiki/S._P._L._S%C3%B8rensen)
- [اس.پی.ال. سورانسن](https://fa.wikipedia.org/wiki/%D8%A7%D8%B3.%D9%BE%DB%8C.%D8%A7%D9%84._%D8%B3%D9%88%D8%B1%D8%A7%D9%86%D8%B3%D9%86)
- [Søren Sørensen](https://fr.wikipedia.org/wiki/S%C3%B8ren_S%C3%B8rensen)
- [S. P. L. Sørensen](https://gl.wikipedia.org/wiki/S._P._L._S%C3%B8rensen)
- [एस पी एल सोरेनसेन](https://hi.wikipedia.org/wiki/%E0%A4%8F%E0%A4%B8_%E0%A4%AA%E0%A5%80_%E0%A4%8F%E0%A4%B2_%E0%A4%B8%E0%A5%8B%E0%A4%B0%E0%A5%87%E0%A4%A8%E0%A4%B8%E0%A5%87%E0%A4%A8)
- [S.P.L. Sørensen](https://id.wikipedia.org/wiki/S.P.L._S%C3%B8rensen)
- [Søren Sørensen](https://it.wikipedia.org/wiki/S%C3%B8ren_S%C3%B8rensen)
- [セーレン・セーレンセン](https://ja.wikipedia.org/wiki/%E3%82%BB%E3%83%BC%E3%83%AC%E3%83%B3%E3%83%BB%E3%82%BB%E3%83%BC%E3%83%AC%E3%83%B3%E3%82%BB%E3%83%B3)
- [ಎಸ್.ಪಿ. ಎಲ್. ಸೊರನ್ಸನ್](https://kn.wikipedia.org/wiki/%E0%B2%8E%E0%B2%B8%E0%B3%8D.%E0%B2%AA%E0%B2%BF._%E0%B2%8E%E0%B2%B2%E0%B3%8D._%E0%B2%B8%E0%B3%8A%E0%B2%B0%E0%B2%A8%E0%B3%8D%E0%B2%B8%E0%B2%A8%E0%B3%8D)
- [Søren Sørensen](https://nl.wikipedia.org/wiki/S%C3%B8ren_S%C3%B8rensen)
- [Soren Sorensen](https://oc.wikipedia.org/wiki/Soren_Sorensen)
- [Søren Peder Lauritz Sørensen](https://pl.wikipedia.org/wiki/S%C3%B8ren_Peder_Lauritz_S%C3%B8rensen)
- [Søren Sørensen](https://pt.wikipedia.org/wiki/S%C3%B8ren_S%C3%B8rensen)
- [سورين سورينسن](https://ar.wikipedia.org/wiki/%D8%B3%D9%88%D8%B1%D9%8A%D9%86_%D8%B3%D9%88%D8%B1%D9%8A%D9%86%D8%B3%D9%86)
- [اس. پی. ال. سورنسن](https://azb.wikipedia.org/wiki/%D8%A7%D8%B3._%D9%BE%DB%8C._%D8%A7%D9%84._%D8%B3%D9%88%D8%B1%D9%86%D8%B3%D9%86)

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