double salt Word Origin noun Chemistry.
- a salt that crystallizes as a single substance but ionizes as two distinct salts when dissolved, as carnallite, KMgCl3⋅6H2O.
Origin of double salt First recorded in 1840–50 British Dictionary definitions for double salt double salt noun
- a solid solution of two simple salts formed by crystallizing a solution of the two saltsCompare complex salt
double salt in Science double salt
- A salt that crystallizes from an aqueous solution of a mixture of two different ions. The mineral dolomite (CaMg(CO3)2), for example, is a double salt that crystallizes from a solution containing both calcium and magnesium ions. Double salts exist only as solids. Compare complex salt simple salt.