How pH got its name
The year 2009 saw the 100th anniversary of an innovation pioneered by the Carlsberg Research Center in Copenhagen, which has been of inestimable importance for every area of science and technology since its introduction. Of course, this refers to measuring the concentration of hydrogen atoms in a solution, otherwise known as pH. When one considers alone the simplification achieved through designating a neutral liquid (distilled water at 22 °C) as having a pH of 7, rather than containing 0.0000001 hydrogen ions per liter, the impact of this system of notation becomes very clear.
Select offer and read on
6 print issues
