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Copper(II) chloride dihydrate

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Identification
Molecular formula
CuCl2·2H2O
CAS number
10125-13-0
IUPAC name
copper;dichloride;dihydrate
State
State

At room temperature, Copper(II) chloride dihydrate exists as a solid. It is highly hygroscopic, meaning it can attract and retain moisture from the environment.

Melting point (Celsius)
100.00
Melting point (Kelvin)
373.00
Boiling point (Celsius)
993.00
Boiling point (Kelvin)
1 266.00
General information
Molecular weight
170.48g/mol
Molar mass
170.4820g/mol
Density
2.5400g/cm3
Appearence

Copper(II) chloride dihydrate appears as a blue-green crystalline solid. It is highly soluble in water and can often be found as bluish-green triclinic, orthorhombic or rhombohedral crystals. This solid changes from blue-green to brown when it loses its water of crystallization.

Comment on solubility

Solubility of Copper(II) Dichloride Dihydrate

Copper(II) dichloride dihydrate, with the formula CuCl2·2H2O, is known for its notable solubility characteristics. Here are some key points regarding its solubility:

  • High Solubility in Water: Copper(II) dichloride dihydrate is highly soluble in water, making it useful in various aqueous applications.
  • Temperature Effect: Its solubility increases with temperature. As the temperature rises, more of the solid can dissolve.
  • Creation of Ions: Upon dissolution, the compound dissociates into copper ions (Cu2+) and chloride ions (Cl-), which are important for its reactivity and applications in reactions.
  • Polar Solvent Affinity: The compound exhibits a strong interaction with polar solvents due to its ionic nature, enhancing its overall solubility profile.

When discussing solubility, it's essential to consider that the presence of other substances in the solution can alter the solubility of CuCl2·2H2O. For instance, the introduction of other ions may lead to precipitation or changes in solubility equilibria. As observed, “the extent of solubility can often define the practical applications of a chemical compound.” Thus, understanding the solubility behavior of copper(II) dichloride dihydrate is crucial for its utilization in different sectors, including analytical chemistry and agriculture.

Interesting facts

Discovering Copper(II) Chloride Dihydrate

Copper(II) chloride dihydrate is a fascinating compound that showcases the versatility and utility of copper in various applications. Here are some intriguing facts about this chemical marvel:

  • Historical Significance: Copper has been used by humans for thousands of years, dating back to ancient civilizations. Its use in metallurgy laid the foundation for early forms of technology and trade.
  • Reactivity: This compound exhibits interesting reactivity, particularly when it comes into contact with other substances. For instance, it can act as a precursor in the synthesis of various copper salts and compounds.
  • Hydrate Form: The dihydrate form contains two water molecules, which significantly influences its properties. The water contributes to the structure and stability, making it a subject of study for crystallography enthusiasts.
  • Laboratory Uses: In laboratory settings, copper(II) chloride dihydrate is often used as a catalyst in organic reactions and is a source of copper ions in various chemical processes.
  • Color and Structure: This compound typically exhibits a distinctive blue-green color due to its copper content. The color not only adds to its aesthetic appeal but also serves as an indicator in various chemical analyses.

As a chemical scientist or student, understanding the properties and applications of copper(II) chloride dihydrate enriches your knowledge of transition metals and their compounds. Its role in modern chemistry cannot be overstated, as it continues to influence fields ranging from materials science to environmental chemistry.

In the words of the renowned chemist Linus Pauling, "The best way to have a good idea is to have a lot of ideas." Exploring compounds like copper(II) chloride dihydrate is one way to cultivate those ideas and advance your scientific understanding!

Synonyms
13933-17-0
copper;dichloride;dihydrate
COPPER(II) CHLORIDE, DIHYDRATE (1:2:2)
Copper chloride (CuCl2), dihydrate (8CI,9CI)
Cl2CuH4O2
SCHEMBL15793
COPPER CHLORIDE [VANDF]
CUPRIC CHLORIDE [VANDF]
CUPRUM MURIATICUM [HPUS]
CUPRIC CHLORIDE [ORANGE BOOK]
AKOS030228133
CUPRIC CHLORIDE [USP IMPURITY]
CUPRIC CHLORIDE [USP MONOGRAPH]
COPPER CHLORIDE DIHYDRATE [WHO-DD]
COPPER (AS CUPRIC CHLORIDE) [VANDF]
Q27159078
Copper Chloride; Copper Chloride Dihydrate; Copper Dichloride Dihydrate;