See also: ph, Ph, PH, .ph, P&H, and pḥ
U+33D7, ㏗

CJK Compatibility

Translingual edit

English Wikipedia has an article on:

Etymology 1 edit

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 edit


  1. (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 edit

Etymology 2 edit

Symbol edit


  1. (metrology) Symbol for picohenry, an SI unit of electrical inductance equal to 10−12 henrys.

See also edit

Egyptian edit

Romanization edit


  1. Manuel de Codage transliteration of pḥ.