"This is immediately followed by "Query: Would not potash, dissolved in spirits of wine, become a conductor?" And he then gives an account of some experiments on the action of voltaic electricity on aqueous solutions of , caustic potash, and , which apparently led to the same result as that already obtained by Nicholson and Carlisle in the case of water."
January 1, 1970
https://en.wikiquote.org/wiki/Humphry_Davy%2C_Poet_and_Philosopher_(Thorpe)