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Calcium iodide hexahydrate

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Identification
Molecular formula
CaI2·6H2O
CAS number
22204-27-5
IUPAC name
calcium;diiodide;hexahydrate
State
State

At room temperature, calcium iodide hexahydrate is typically a solid. Because it is hygroscopic, it can absorb moisture from the environment, which might change its physical characteristics over time if not stored properly.

Melting point (Celsius)
659.00
Melting point (Kelvin)
932.15
Boiling point (Celsius)
782.00
Boiling point (Kelvin)
1 055.15
General information
Molecular weight
293.90g/mol
Molar mass
293.9000g/mol
Density
0.3656g/cm3
Appearence

Calcium iodide hexahydrate typically appears as colorless crystals. These crystals can become deliquescent, meaning they can absorb moisture from the air until they're dissolved, if exposed.

Comment on solubility

Solubility of Calcium Diiodide Hexahydrate (CaI2·6H2O)

Calcium diiodide hexahydrate is a fascinating compound when it comes to solubility in various solvents. Here are some key points regarding its solubility:

  • Water Solubility: CaI2·6H2O is known for its excellent solubility in water. This high solubility can be attributed to the presence of water molecules in the hexahydrate form, which facilitates the dissociation of calcium and iodide ions.
  • Temperature Influence: The solubility of this compound tends to increase with temperature. As the temperature rises, the kinetic energy of water molecules increases, allowing for better interaction with the compound.
  • Polar Solvents: Besides water, calcium diiodide hexahydrate is also soluble in other polar solvents due to its ionic nature, although water remains the most common and practical solvent.
  • Localized Applications: This solubility behavior makes CaI2·6H2O useful in various chemical processes, including synthesis and analytical chemistry.

In summary, one can state that "The solubility of calcium diiodide hexahydrate in water is a distinct feature that enhances its functionality across diverse scientific applications."

Interesting facts

Interesting Facts about Calcium Diiodide Hexahydrate

Calcium diiodide hexahydrate is a fascinating compound that presents a unique intersection of chemistry, nutrition, and materials science. Here are some interesting aspects to consider:

  • Source of Iodine: This compound serves as an essential source of iodine, a crucial element for thyroid function in humans and animals. Iodine deficiency can lead to various health issues, including goiter and developmental delays.
  • Role in Compounds: When used in biochemical research, CaI2·6H2O can act as a reagent or reactant in synthesis processes, contributing to the formation of other useful compounds.
  • Hydration Power: The hexahydrate aspect indicates that it incorporates six water molecules, which hints at its solubility and stability in various aqueous environments. This hydrating ability can influence its reactivity and interactions with other substances.
  • Industrial Uses: Beyond its biological significance, calcium diiodide hexahydrate is valuable in various industry applications such as photographic processes and certain types of chemical syntheses.
  • Safety and Handling: Despite its utility, handling such compounds requires caution. It is important to follow safety protocols as iodine compounds can be irritants and may pose environmental risks if not managed correctly.

In summary, calcium diiodide hexahydrate is not just a simple inorganic compound; it plays critical roles across different fields, including biochemistry, industry, and nutrition - making it a compound worthy of closer examination and understanding.


Synonyms
CALCIUM IODIDE, HEXAHYDRATE
calcium;diiodide;hexahydrate
UNII-4B9QO6S58D