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

Road maintenance operator Bear Scotland said all trunk roads in the north west of Scotland had received double salt treatments, and 41 spreaders were patrolling routes and treating as necessary on Monday morning.

From BBC

The salt of wisdom of the alchemists, a double salt composed of the chlorides of ammonium and mercury.

From Project Gutenberg

A double salt of boric and silicic acids, as in the natural minerals tourmaline, datolite, etc.

From Project Gutenberg

The double salt of quinia and urea answers for this purpose, as it is very soluble in water and does not produce inflammation of the connective tissue.

From Project Gutenberg

Substances which form isodimorphous groups also frequently crystallize as double salts.

From Project Gutenberg