Chem. [f. SUPER- 12 b + SALT sb. 6.] A salt containing an excess of the acid over the base; an acid salt.
1806. G. Adams’ Nat. & Exp. Philos. (Philad.), I. App. 547. Some salts are formed by an additional dose of their acids, and hence termed super-salts.
1807. T. Thomson, Chem. (ed. 3), II. 575. Phosphate of Lime. Of this salt there are two varieties; the first neutral, the other a supersalt.
1844. Fownes, Man. Elem. Chem., 207. Many of the compounds called super, or acid salts … ought strictly to be considered in the light of double salts.
