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Copper(II) sulfate pentahydrate

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Identification
Molecular formula
CuSO4·5H2O
CAS number
7758-99-8
IUPAC name
copper;hydrate
State
State

At room temperature, copper(II) sulfate pentahydrate is a solid. It readily absorbs water from moist air, and as it loses water of hydration, it transforms into an anhydrous form, which is pale green.

Melting point (Celsius)
110.00
Melting point (Kelvin)
383.00
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
249.69g/mol
Molar mass
249.6850g/mol
Density
2.2840g/cm3
Appearence

Copper(II) sulfate pentahydrate appears as blue crystalline solid. The vivid blue color of the crystals is due to the water of hydration.

Comment on solubility

Solubility of Copper Hydrate

Copper hydrates, such as Copper(II) sulfate pentahydrate (CuSO4•5H2O), exhibit interesting solubility properties in various solvents. Here are some key points to understand about their solubility:

  • Water Solubility: Copper hydrates are generally very soluble in water. For instance, Copper(II) sulfate pentahydrate dissolves quite readily, producing a blue solution due to the presence of hydrated copper ions.
  • Temperature Dependency: The solubility of copper hydrates tends to increase with temperature. They are more soluble in warm water compared to cold water, allowing for greater dissolution rates.
  • pH Influence: The solubility can be affected by the pH of the solution. In acidic or neutral conditions, solubility is improved, whereas alkaline conditions can lead to decreased solubility due to the formation of insoluble copper hydroxide compounds.
  • Presence of Other Ions: The addition of other ions, such as chloride or sulfate, may also impact the solubility of copper hydrates by forming complex ions or precipitates.

In summary, copper hydrates, particularly in their common forms, are typically characterized by their high solubility in water, influenced by temperature, pH, and the presence of various ions. Understanding these factors is crucial for applications in chemistry and industry.

Interesting facts

Interesting Facts About Copper Hydrate

Copper hydrate is a fascinating compound that plays a crucial role in various fields, from metallurgy to environmental science. Below are some intriguing facts that showcase the significance of this compound:

  • Versatile Applications: Copper hydrate is widely used in agriculture as a fungicide. Its ability to combat fungal infections helps protect crops, ensuring better yields and healthier plants.
  • Electrochemistry: This compound is important in electrochemical reactions, often used as an electrolyte in batteries. Its electrical conductivity makes it an ideal candidate for energy storage solutions.
  • Biological Interest: Copper is an essential trace element necessary for various biological processes in living organisms. Copper hydrates can influence enzyme activity and play a role in metabolic pathways.
  • Environmental Indicators: Due to its properties, copper hydrate is sometimes utilized as an indicator of environmental contamination, particularly in soil and water evaluations.

“Copper does more than enhance the beauty of a surface; it contributes profoundly to life itself.” This quote highlights the multifaceted importance of copper in natural processes as well as in industrial applications.

In summary, copper hydrate is not just a simple chemical compound; it is a vital player in numerous scientific disciplines. Its diverse applications and essential roles in nature make it a topic of interest for both chemists and researchers alike.

Synonyms
Dicopper oxide
Perenox
Cupramar
Cuprocide
Fungimar
Kuprite
Oleocuivre
Perecot
Nordox
Copper sardez
Copper Sandoz
Copper oxide (Cu2O)
Yellow Cuprocide
Brown copper oxide
Cu-O-Cu Linkage
MFCD00010974
Kupferoxydul [German]
Cupper oxide [Russian]
Oxyde cuivreux [French]
Copper(1) oxide
Copper(I) oxide, p.a.
Copper(I) oxide, 97%
Copper(I) oxide <7micron
NCIOpen2_001242
WLN: CU2 O
NSC83538
AKOS015903626
Copper(I) oxide, >=86% Cu basis, red
Copper(I) oxide, powder, <=7 mum, 97%
NS00075648
Copper protoxide; Copperoxy; Red Copper Oxide;
Copper(I) oxide, >=99.99% trace metals basis, anhydrous
Copper(I) oxide, nanospheres, dispersion, <350 nm particle size, 1.5 % (w/v) in ethanol