William Hyde Wollaston (1814). "A synoptic scale of chemical equivalents", Philosophical Transactions of the Royal Society, 104: 1-22. Wollaston anvender betegnelsen "bicarbonat" på side 11: "The next question that occurs relates to the composition of this crystallized carbonate of potash, which I am induced to call bi-carbonate of potash, for the purpose of marking more decidedly the distinction between this salt and that which is commonly called a subcarbonate, and in order to refer at once to the double dose of carbonic acid contained in it." (engelsk)
