double salt

noun

, Chemistry.

1. a salt that crystallizes as a single substance but ionizes as two distinct salts when dissolved, as carnallite, KMgCl 3 ⋅6H 2 O.

double salt

noun

1. a solid solution of two simple salts formed by crystallizing a solution of the two salts Compare complex salt

double salt

1. A salt that crystallizes from an aqueous solution of a mixture of two different ions. The mineral dolomite (CaMg(CO 3 ) 2 ), for example, is a double salt that crystallizes from a solution containing both calcium and magnesium ions. Double salts exist only as solids.
2. Compare complex salt

Word History and Origins

Origin of double salt¹

First recorded in 1840–50

Example Sentences

The soluble compound which is formed is generally considered to be a double salt of theobromin sodium and sodium salicylate.

From Project Gutenberg

The solution usually turned to a pasty mass, due to the formation of a tin double salt.

From Project Gutenberg

Small double salt and pepper earthen vessel, box-shaped, and decorated.

From Project Gutenberg

The double salt is non-toxic, though sometimes in exceedingly weak patients it produces vertigo.

From Project Gutenberg

With sulphate of potassa it forms a double salt (manganese alum).

From Project Gutenberg