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Double Salt vs. Complex Salt: What's the Difference?

Edited by Sawaira Riaz || By Sumera Saeed || Updated on October 18, 2023
Double salts are formed from two different salts and dissociate completely in solution; complex salts form coordination compounds and don't fully dissociate.

Key Differences

Double salts and complex salts represent two unique categories within the world of salts, with distinct properties and behavior.
Sumera Saeed
Oct 18, 2023
Double salts arise when two distinct simple salts crystallize together in a fixed stoichiometric ratio but remain as individual entities. When dissolved in water, double salts disintegrate entirely into their constituent ions.
Sumera Saeed
Oct 18, 2023
Conversely, complex salts consist of a central metal atom or ion bonded to one or more ligands, forming coordination compounds. When a complex salt dissolves, not all its bonds break only certain ions dissociate, leaving the central atom/ion with its attached ligands intact.
Sumera Saeed
Oct 18, 2023
So, while double salts present themselves as a mixture of two salts, complex salts introduce a coordinated entity in their structure. Another way to discern them is by examining their behavior in aqueous solutions: double salts offer a full spectrum of ions from their parent salts, while complex salts retain a part of their structure, releasing only some ions.
Sumera Saeed
Oct 18, 2023

Comparison Chart

Composition

Two different salts in a fixed ratio.
Central metal ion bonded to ligands.
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Oct 18, 2023
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Dissociation in Water

Fully dissociates into its constituent ions.
Partially dissociates; some structure remains intact.
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Oct 18, 2023

Examples

Mohr's salt, Rochelle salt.
[Cu(NH3)4]SO4, [Fe(CN)6]^(3-).
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Oct 18, 2023

Structural Characteristic

No coordination between metal ions and ligands.
Features coordination between metal ions and ligands.
Janet White
Oct 18, 2023

Behavior in Solution

Behaves as a mix of its two constituent salts.
Behaves uniquely due to its retained coordinated entity.
Aimie Carlson
Oct 18, 2023

Double Salt and Complex Salt Definitions

Double Salt

Contains ions from two original salts without coordination.
Double salts disintegrate completely, revealing the ions of both parent salts.
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Oct 18, 2023
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Complex Salt

A salt where a central metal ion is bonded to one or more ligands.
The compound [Cu(NH3)4]SO4 is a complex salt.
Sawaira Riaz
Oct 18, 2023

Double Salt

A salt that fully dissociates into its constituent ions in solution.
When dissolved, the double salt releases all its ions.
Sumera Saeed
Oct 18, 2023

Complex Salt

Contains a metal atom/ion and ligands in a distinct arrangement.
[Fe(CN)6]^(3-) is a classic example of a complex salt.
Sumera Saeed
Oct 18, 2023

Double Salt

A compound formed by the combination of two different salts.
Mohr's salt is an example of a double salt.
Sawaira Riaz
Oct 18, 2023

Complex Salt

A coordination compound that partially dissociates in solution.
In water, a complex salt may retain its central metal-ligand bond.
Sumera Saeed
Oct 18, 2023
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Double Salt

A crystalline entity with two distinct simple salts.
Rochelle salt is another widely recognized double salt.
Sumera Saeed
Oct 18, 2023

Complex Salt

Forms when ligands coordinate to a metal ion.
Complex salts exhibit unique colors due to their metal-ligand bonds.
Janet White
Oct 18, 2023

Double Salt

A compound with a fixed stoichiometric ratio of two salts.
The unique ratio of salts in a double salt determines its properties.
Janet White
Oct 18, 2023

Complex Salt

A compound where not all ions dissociate in solution.
Complex salts retain some structure when dissolved, unlike double salts.
Janet White
Oct 18, 2023

FAQs

Do double salts fully dissociate in water?

Yes, double salts fully dissociate into their constituent ions in water.
Sawaira Riaz
Oct 18, 2023

Can you give an example of a double salt?

Mohr's salt, a combination of iron sulfate and ammonium sulfate, is an example.
Sumera Saeed
Oct 18, 2023

Can a compound be both a double salt and a complex salt?

While both are salts, they're distinct categories; a compound typically belongs to one or the other.
Harlon Moss
Oct 18, 2023

What's the main composition difference between double and complex salts?

Double salts consist of two distinct salts, while complex salts have a metal ion bonded to ligands.
Sumera Saeed
Oct 18, 2023

What remains intact in a solution of complex salt?

In complex salts, the metal-ligand bond remains intact in solution.
Sumera Saeed
Oct 18, 2023

Are the properties of double salts unique?

No, they're typically a combination of the properties of their constituent salts.
Sumera Saeed
Oct 18, 2023

How are double salts formed?

Double salts form when two salts crystallize together in a fixed ratio.
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Oct 18, 2023

Can double salts be found in nature?

Yes, some double salts can be found naturally in mineral deposits.
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Oct 18, 2023

Why are some complex salts colored?

The color arises due to electronic transitions within the metal-ligand complex.
Aimie Carlson
Oct 18, 2023

Are complex salts used in medical applications?

Yes, some complex salts are used in medicine for various purposes.
Aimie Carlson
Oct 18, 2023

What's a key feature of complex salts?

A central metal ion coordinated to one or more ligands is a key feature.
Aimie Carlson
Oct 18, 2023

Is the ratio of salts in a double salt important?

Yes, the stoichiometric ratio of the two salts in a double salt is crucial.
Sara Rehman
Oct 18, 2023

Do all metal ions form complex salts?

Not all, but many metal ions can form complex salts with suitable ligands.
Sara Rehman
Oct 18, 2023

Are there health implications linked to these salts?

Both can have health implications depending on their constituents and exposure levels.
Sumera Saeed
Oct 18, 2023

How can one distinguish between double and complex salts?

Observing their behavior in solution can help distinguish between them.
Janet White
Oct 18, 2023

Do complex salts have applications in industry?

Absolutely, complex salts are used in various industries, including electroplating and dyeing.
Harlon Moss
Oct 18, 2023

Can double salts be synthesized in labs?

Yes, many double salts are synthesized for various research purposes.
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Oct 18, 2023

Are ligands only organic molecules in complex salts?

No, ligands can be both organic and inorganic entities.
Aimie Carlson
Oct 18, 2023

Which is more prevalent in nature, double or complex salts?

Both can be found, but complex ions and their salts have a broader presence in biological systems.
Harlon Moss
Oct 18, 2023

Can complex salts exhibit colors?

Yes, many complex salts have distinct colors due to their metal-ligand bonds.
Sumera Saeed
Oct 18, 2023
About Author
Written by
Sumera Saeed
Sumera is an experienced content writer and editor with a niche in comparative analysis. At Diffeence Wiki, she crafts clear and unbiased comparisons to guide readers in making informed decisions. With a dedication to thorough research and quality, Sumera's work stands out in the digital realm. Off the clock, she enjoys reading and exploring diverse cultures.
Edited by
Sawaira Riaz
Sawaira is a dedicated content editor at difference.wiki, where she meticulously refines articles to ensure clarity and accuracy. With a keen eye for detail, she upholds the site's commitment to delivering insightful and precise content.

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