cellkonstant
Cell constant, sometimes referred to as Zellkonstante in German literature, is a geometry-based factor used in electrochemical conductivity measurements to relate the conductance of a solution as measured by a cell to the solution’s electrical conductivity. It depends on the physical dimensions of the cell, notably the distance between the electrodes and their surface area.
For a conductivity cell with two electrodes, the cell constant K is defined by K = l/A, where
Calibration of the cell constant is commonly done with standard solutions of known conductivity, κ_s, yielding
Cell geometry variations include parallel-plate, concentric cylindrical, and other configurations; the geometry determines K and, consequently,
Practical considerations include the influence of electrode cleanliness, polarization, and fouling on G, which can affect
Applications are widespread in water quality testing, chemical analysis, and industrial process control.