Junction Potential Calculator

Calculate the liquid junction potential between two solutions

Temperature (K)

Cation

Ion

[Left] (M)

[Right] (M)

Anion

Ion

[Left] (M)

[Right] (M)

About Junction Potential

The liquid junction potential arises when two solutions of different composition are in contact. It occurs because ions diffuse at different rates.

Minimizing Ej: Use a salt bridge with KCl or KNO₃ where cation and anion have similar mobilities (t+ ≈ t-).