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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
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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


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Word History and Origins

Origin of double salt1

First recorded in 1840–50
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Example Sentences

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

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

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

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

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

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