Differences between Double salt and Complex Compound Preparation and Properties

Differences between double Salt and a Complex Compound (Coordination Compound) :

Double Salt	Complex Compound
Double salt exists only in solid state and dissociate into ions in aqueous solution or in any other solvent.	Co-ordination compounds exist in the solid state as well as when dissolved in water or any other solvent.
In solution, they lose their identity.	They do not completely lose their identity in solution.
The properties of the double salt are essentially the same as those of constituent compounds.	The properties of coordination compound are different from the constituents.
In a double salt, metal ions exhibit their normal valiancy.	In co-ordination compound, metal ion is surrounded by a number of positively charged ions or neutral molecules more than its normal valency.