pH
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Translingual
Etymology 1
Originally introduced in 1909 by S. P. L. Sørensen, using the notation pH+ for what he called the “hydrogen ion exponent” (Wasserstoffionenexponent ) of a solution. He may have chosen the symbol p arbitrarily; another suggestion is that it abbreviates German Potenz (“power”). The “H” is the international chemical symbol for the element hydrogen.
Symbol
pH
- (chemistry) Measure of the acidity (low pH) or basicity (high pH) of an aqueous solution, equal to the negative logarithm of the concentration of hydronium ions in molars
Coordinate terms
Etymology 2
Symbol
pH
- (metrology) Symbol for picohenry, an SI unit of electrical inductance equal to 10−12 henrys.
See also
Egyptian
Romanization
pH