The SI unit of electrochemical equivalent is

The electrochemical equivalent of a substance is the mass liberated in electrolysis by 1 coulomb. It can be calculated by assuming by 1 coulomb Faraday’s second law and using the experimental fact that the equivalent weight in gams of all substances is liberate by 96500 C.
Electrochemical equivalent $=\frac{\mathrm{E}\mathrm{q}\mathrm{u}\mathrm{i}\mathrm{v}\mathrm{a}\mathrm{l}\mathrm{e}\mathrm{n}\mathrm{t}\mathrm{w}\mathrm{e}\mathrm{i}\mathrm{g}\mathrm{h}\mathrm{t}}{96500}$
Gm per coulomb. Its unit is $kg{C}^{-1}.$