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The Symbol for pH

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William B. Jensen

Department of Chemistry, University of Cincinnati, Cincinnati, OH 45221-0172

J. Chem. Educ., 2004, 81 (1), p 21

DOI: 10.1021/ed081p21

Publication Date (Web): January 1, 2004

Section:

History, Education, and Documentation

Abstract

In response to a reader's inquiry, this column traces the origins of the pH symbol in the work of the Danish biochemist Søren Sørensen.

Keywords (Audience):

General Public

Keywords (Domain):

Analytical Chemistry

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Keywords (Subject):

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This article has been cited by 1 ACS Journal articles (1 most recent appear below).

One-Hundred Years of pH
Rollie J. Myers
Journal of Chemical Education2010 87 (1), 30-32
- One-Hundred Years of pH
  Rollie J. Myers
  Journal of Chemical Education2010 87 (1), 30-32
  The idea of expressing the hydrogen-ion concentration on a log arithmetic scale was presented by S. P. L. Sørensen in 1909. The symbol that he used was the letter p and a smaller H appearing almost as a subscript. Typographical convenience led journals to ...
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History

Received: August 03, 2009

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The Symbol for pH