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Cesium iodide

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Identification
Molecular formula
CsI
CAS number
7789-17-5
IUPAC name
cesium;iodide
State
State
Cesium iodide is a solid at room temperature. It typically exists in the form of cubic crystals.
Melting point (Celsius)
621.00
Melting point (Kelvin)
894.00
Boiling point (Celsius)
1 297.00
Boiling point (Kelvin)
1 570.00
General information
Molecular weight
259.81g/mol
Molar mass
259.8090g/mol
Density
4.5100g/cm3
Appearence
Cesium iodide is a white or colorless solid. It has a crystalline appearance and is often used in its crystal form for various applications. When exposed to light, particularly ultraviolet, it can exhibit luminescence.
Comment on solubility

Solubility of Cesium Iodide (CsI)

Cesium iodide, with the chemical formula CsI, exhibits notable solubility characteristics that make it an interesting compound in the realm of chemistry. When discussing the solubility of CsI, several key points can be highlighted:

  • Highly Soluble in Water: CsI is known for its high solubility in water, which can be attributed to the relatively strong ionic character of the cesium-iodide bond.
  • Temperature Dependence: Like many salts, the solubility of CsI tends to increase with rising temperature. This behavior is important for applications requiring concentrated solutions.
  • Comparison with Other Alkali Metal Iodides: While CsI is soluble, other alkali metal iodides like sodium iodide (NaI) and potassium iodide (KI) also show high solubility, albeit with different solubility dynamics.
  • No Precipitation: Under typical conditions, CsI will not precipitate out of solution, maintaining its dissolved state, which is an important aspect for its practical applications.

In conclusion, the solubility of cesium iodide in water is not only substantial but also influenced by external factors such as temperature. This characteristic makes CsI suitable for a variety of chemical and industrial applications.

Interesting facts

Interesting Facts About Cesium Iodide

Cesium iodide, a fascinating chemical compound, holds a significant place in both scientific research and technological applications. Here are some captivating aspects of cesium iodide:

  • Application in Scintillation Detectors: Cesium iodide is widely used in scintillation detectors, which are essential for detecting ionizing radiation. Their efficiency and effectiveness in converting radiation energy into visible light make them invaluable in fields such as nuclear medicine and radiation detection.
  • Role in Photovoltaic Devices: This compound's unique properties allow it to be incorporated in certain photovoltaic devices, enhancing light absorption and conversion efficiency. Research in this area aims to develop more efficient solar energy technologies.
  • Formation of Simple Salts: Cesium iodide is notable as one of the few salts that can form a simple ionic lattice, providing insights into ionic bonding and crystal structures.
  • Important in the Study of Ion Exchange: The compound serves as a model system for studying ion exchange processes, which are vital in areas such as environmental chemistry and water purification.
  • Taste and Odor: Interestingly, despite being an inorganic compound, cesium iodide can impart a specific taste when present in certain concentrations, although it's typically not meant for ingestion!

Moreover, cesium iodide's relatively low toxicity enhances its appeal in laboratory settings. Overall, this compound exemplifies the intersection of chemistry, physics, and engineering, demonstrating how a simple ionic compound can lead to diverse applications that impact our daily lives and scientific advancement.

Synonyms
CESIUM IODIDE
Caesium iodide
Cesium iodide (CsI)
Cesium monoiodide
Dicesium diiodide
Tricesium triiodide
Cesium iodide (Cs2I2)
Cesium iodide (Cs3I3)
UNII-U1P3GVC56L
EINECS 232-145-2
U1P3GVC56L
NSC 15199
NSC-15199
CESIUM IODIDE [MI]
DTXSID3064859
EC 232-145-2
Caesium iodide (CsI)
DTXCID9048063
7789-17-5
Cesiumiodide
cesium;iodide
MFCD00010962
cesium,iodide
Cesium iodide, ultra dry
WLN: CS I
NSC15199
AKOS015833256
AKOS015902666
CS-W020900
FC53781
HY-W040160
SB66393
SY023491
Cesium iodide, 99.9% Trace metals grade
C2205
NS00080503
Q50703
A839266