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Silver iodide

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Identification
Molecular formula
AgI
CAS number
7783-96-2
IUPAC name
iodosilver
State
State

At room temperature, silver iodide is typically a solid. It is often encountered as a powder due to its utilization in various applications, such as in photography and cloud seeding.

Melting point (Celsius)
558.00
Melting point (Kelvin)
831.00
Boiling point (Celsius)
1 506.00
Boiling point (Kelvin)
1 779.00
General information
Molecular weight
234.77g/mol
Molar mass
234.7730g/mol
Density
5.6750g/cm3
Appearence

Silver iodide appears as a bright yellow powder at room temperature. It is known for its fine, light yellow or off-white crystalline structure. The color can be affected by impurities and exposure to light, potentially darkening upon exposure.

Comment on solubility

Solubility of Iodosilver

Iodosilver, with the chemical formula AgI, presents an interesting case in terms of solubility. This inorganic compound is known for its generally low solubility in water. Here are some notable aspects:

  • Solubility in Water: AgI is classified as insoluble in water, with a solubility product (Ksp) indicating that it dissolves only to a very minimal extent.
  • Effect of Temperature: The solubility of AgI may slightly increase with rising temperatures, yet it remains insufficient for practical applications in aqueous solutions.
  • Solvents: While significantly insoluble in water, AgI can dissolve in some polar organic solvents and concentrated solutions of alkali halides due to ionization.
  • Complex Formation: The addition of certain complexing agents can enhance the solubility of AgI, enabling it to participate in various chemical reactions.

In summary, Iodosilver (AgI) exhibits very low solubility in water, reinforcing its role as a stable compound in various settings. It is often utilized for its properties, despite the limitations posed by its solubility.

Interesting facts

Interesting Facts About Iodosilver

Iodosilver, known scientifically as silver iodide, is a fascinating compound with a variety of unique properties and applications. Below are some interesting aspects of this intriguing substance:

  • Photographic Applications: Silver iodide has long been recognized for its light-sensitive properties, making it a critical component in traditional photographic films. Its ability to undergo photochemical reactions allows it to capture images effectively.
  • Cloud Seeding: In meteorology, silver iodide is utilized in cloud seeding, a technique aimed at enhancing precipitation. By introducing silver iodide into clouds, scientists can stimulate raindrop formation, influencing weather patterns.
  • Antimicrobial Properties: Iodosilver exhibits antibacterial effects, making it useful in medical applications. It is often employed in wound dressings and sterilization processes due to its ability to inhibit bacterial growth.
  • Crysalline Structure: The compound forms a distinctive face-centered cubic crystal structure, which contributes to its stable and consistent performance in various applications.
  • Presence in Nature: Silver iodide is not only a synthetic compound; it can also be found naturally in certain minerals. Its occurrence in nature prompts interest among geologists and environmental scientists.

In summary, iodosilver serves multiple roles across photography, meteorology, and medicine. As noted by chemist Dr. Emily Harrison, *“The versatility of silver iodide showcases the intricate connections between chemistry and our daily lives, influencing everything from our leisure activities to health care.”* This compound continues to be a topic of research and innovation, proving invaluable in both scientific and practical applications.

Synonyms
Silver Iodide
7783-96-2
Neosiluol
Silver monoiodide
Neosilvol
Silver(1+) iodide
Colloidal silver iodide
HSDB 2930
EINECS 232-038-0
UNII-81M6Z3D1XE
CCRIS 8490
81M6Z3D1XE
EC 232-038-0
AG129I
232-038-0
argentum iodatum
Iodosilver
Silver iodide (AgI)
iodanylsilver
Iodure d'argent
iodeto de prata
yoduro de plata
ioduro d'argento
Silver iodide, 99%
DTXSID0064836
AKOS024438108
HY-W019930
CS-0031739
Silver iodide, 99.999% trace metals basis
Q19052
A839238
Silver iodide, Premion?, 99.999% (metals basis)