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Cadmium iodide

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Identification
Molecular formula
CdI2
CAS number
7790-80-9
IUPAC name
cadmium(2+);diiodide
State
State

At room temperature, cadmium iodide is a white solid.

Melting point (Celsius)
387.00
Melting point (Kelvin)
660.00
Boiling point (Celsius)
767.00
Boiling point (Kelvin)
1 040.00
General information
Molecular weight
366.22g/mol
Molar mass
366.2200g/mol
Density
5.6700g/cm3
Appearence

Cadmium iodide appears as a white crystalline solid. It can form deliquescent, translucent, hexagonal crystals. Its appearance is largely dictated by the conditions and size of its crystals.

Comment on solubility

Solubility of Cadmium(II) Diiodide (CdI2)

Cadmium(II) diiodide exhibits notable solubility characteristics, which can be explored through various factors. Here are some key points to consider:

  • Solubility in Water: CdI2 is known to be less soluble in water compared to many other iodides. Its solubility decreases with temperature, which means that it may not dissolve as readily in warmer water.
  • Effect of Ionic Strength: The solubility of CdI2 can be influenced by the ionic strength of the solution. Higher ionic strengths may lead to a decrease in solubility, a phenomenon often observed in ionic compounds.
  • Complex Formation: The solubility may increase in the presence of complexing agents, which can stabilize the cadmium ion in solution.
  • Common Ion Effect: Introducing additional iodine ions into the solution can further impact the solubility. The common ion effect typically results in decreased solubility due to the shift in equilibrium.

In general, while cadmium(II) diiodide is not considered highly soluble in water, its solubility behavior is influenced by various environmental and chemical factors, leading to a complex interplay of interactions within solution. Understanding these can help in practical applications and chemical synthesis where precise solubility profiles are required.

Interesting facts

Interesting Facts about Cadmium(II) Diiodide

Cadmium(II) diiodide, often noted for its dual iodine presence, is a fascinating compound that finds its utility in various fields of science and technology. Here are some intriguing facts:

  • Structure & Bonding: Cadmium(II) diiodide features a unique molecular structure that displays a characteristic layered arrangement, influencing its physical properties and interactions.
  • Application in Electronics: Due to its semiconductor properties, cadmium(II) diiodide has been explored as a material in electronic devices, particularly in thin-film transistors.
  • Role in Synthesis: This compound is essential in the synthesis of other cadmium-based compounds, acting as a precursor in various chemical reactions.
  • Research & Studies: Cadmium(II) diiodide has been a subject of numerous studies aimed at understanding the effects of cadmium on health and the environment, highlighting the importance of responsible handling in lab settings.
  • Toxicity Awareness: While cadmium as a metal is known for its toxicity, awareness surrounding its compounds, including cadmium(II) diiodide, is vital. Safety protocols must be adhered to when handling this compound.

In the words of a renowned chemist, “The beauty of chemistry lies in its ability to forge connections between seemingly unrelated elements.” Cadmium(II) diiodide exemplifies this notion by bridging the gap between basic principles and practical applications, making it an interesting subject in both academic and industrial contexts.

As students and scientists explore the capabilities of cadmium(II) diiodide, they are not only enhancing their understanding of inorganic chemistry but also paving the way for innovations in materials science.

Synonyms
CADMIUM IODIDE
Cadmium diiodide
Cadmium iodide (CdI2)
UNII-2F2UPU4KCW
2F2UPU4KCW
EINECS 232-223-6
CADMIUM IODATUM
AI3-02411
CADMIUM IODIDE [MI]
CADMIUM IODATUM [HPUS]
CADMIUM IODIDE [WHO-DD]
DTXSID20894887
Cadmium(II) iodide
diiodocadmium
Cadmium di-iodide
Cadmium(2+) iodide
DTXCID501324446
232-223-6
un2570
7790-80-9
cadmium(2+);diiodide
Cadmiumiodide
OKIIEJOIXGHUKX-UHFFFAOYSA-L
AKOS024438114
DB-254141
NS00082338