Chem. (Not in use.) [f. SUB- 23 + SALT sb.1 Cf. F. sous-sel.] A basic salt.

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1806.  G. Adams’ Nat. & Exp. Philos. (Philad.), I. App. 547. Some [salts] are formed by an excess of their base … and hence termed sub-salts.

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1849.  D. Campbell, Inorg. Chem., 5. Salts with less acid than base, are named basic salts, or subsalts, and are distinguished according to the proportion of base to acid; as bibasic subsalts, or tribasic subsalts.

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1857.  Miller, Elem. Chem., Org., x. 595. Ferridcyanide of potassium … gives … with subsalts of mercury a brownish red.

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