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Nickel(II) chloride hexahydrate

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Identification
Molecular formula
NiCl2·6H2O
CAS number
7791-20-0
IUPAC name
nickelous;dichloride;hexahydrate
State
State

Nickel(II) chloride hexahydrate is commonly found in a solid state at room temperature. The presence of six water molecules of hydration contributes to its crystalline and hydrated nature.

Melting point (Celsius)
140.00
Melting point (Kelvin)
413.00
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
237.69g/mol
Molar mass
237.6900g/mol
Density
1.9200g/cm3
Appearence

Nickel(II) chloride hexahydrate typically appears as a green crystalline solid. The crystals are often of a vivid green color due to the presence of nickel ions, which give the compound its characteristic appearance.

Comment on solubility

Solubility of Nickel(II) Chloride Hexahydrate

Nickelous dichloride hexahydrate, with the formula NiCl2•6H2O, is a chemical compound that exhibits notable solubility characteristics. Being a salt of nickel with chloride ions, its solubility is influenced by several factors:

  • Water Solubility: NiCl2•6H2O is highly soluble in water, typically dissolving at a concentration of approximately 0.5 g per 1 mL at room temperature.
  • Temperature Dependence: Its solubility tends to increase with temperature, allowing for greater dissolution in hot water compared to cold.
  • Solvent Selection: Although water is the most common solvent, it can also dissolve in other polar solvents, albeit to a lesser extent.
  • Impact of pH: The solubility is generally unaffected by pH, maintaining its dissolvable nature across a range of conditions.

When exploring the solubility of NiCl2•6H2O, it is essential to remember:

  • *"Solubility is not static; it is dynamic and can be affected by various environmental factors."*
  • The presence of other ions in the solution can affect solubility due to interactions, which may lead to precipitation under certain conditions.

This hexahydrate form is often used in chemical reactions and processes due to its convenient solubility, making it a valuable compound in both laboratory and industrial settings.

Interesting facts

Interesting Facts about Nickelous Dichloride Hexahydrate

Nickelous dichloride hexahydrate, often recognized by its striking role in various industrial applications, is a hydrous form of nickel chloride. Here are some intriguing aspects of this compound:

  • Coordination Chemistry: Nickelous dichloride is an example of a transition metal salt that plays a crucial role in coordination chemistry. The hexahydrate form possesses six water molecules coordinated to the nickel ion, which greatly influences its chemical behavior in reactions.
  • Electroplating Applications: Due to its properties as a source of nickel ions, this compound is often utilized in electroplating processes. Nickel coatings are essential for enhancing the corrosion resistance and durability of various metals.
  • Precursor in Organic Synthesis: Nickelous dichloride hexahydrate serves as a vital precursor in organic synthesis, contributing to the production of various organic nickel compounds, which can be useful in catalysis and material science.
  • Metallic Alloys: The compound is employed in producing certain nickel alloys that are resistant to corrosion and have enhanced mechanical properties, thus finding applications in aerospace and marine engineering.
  • Toxicity Considerations: While nickel compounds are often utilized in industry, it's essential to handle nickelous dichloride hexahydrate with care. It is *considered toxic* and poses potential health risks upon exposure, emphasizing the need for proper safety protocols in its use.
  • Cultural Significance: In certain cultures, compounds containing nickel have been historically linked to the crafting of jewelry and decorative items, showcasing its aesthetic appeal in addition to its practical applications.

The fascinating blend of functionalities exhibited by nickelous dichloride hexahydrate makes it a significant compound in both industrial and research settings, warranting attention and respect in the field of chemistry.

Synonyms
Nickel dichloride hexahydrate
CCRIS 3731
T8365BUD85
Nickel chloride (NiCl2), hexahydrate
Nickel(II) chloride, hexahydrate (1:2:6)
nickel chloride--water (1/6)
CHEBI:53542
Nickel(II) chloride, hexahydrate
NICKEL CHLORIDE HEXAHYDRATE [MI]
NICKEL(2+) CHLORIDE HEXAHYDRATE
NICKEL CHLORIDE (NICL2) HYDRATE (1:6)
NICKEL CHLORIDE HEXAHYDRATE (NICL2.6H2O)
DTXCID5021170
616-576-7
7791-20-0
dtxsid7041170
nickel chloride hexahydrate
nickel(ii) chloride hexahydrate
UNII-T8365BUD85
nickel(2+);dichloride;hexahydrate
BCP27781