pK

See also: pk, PK, .pk, and p.K.

Translingual

Symbol

pK

  1. (chemistry) the negative logarithm (to the base 10) of the dissociation constant of an electrolyte.
  2. (chemistry) the pH at which equal concentrations of the acidic and basic forms of a substance are present.
  3. (metrology) Symbol for picokelvin, an SI unit of thermodynamic temperature equal to 10−12 kelvins.

Derived terms
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