Product Name
Silver iodide
InChI
InChI=1S/Ag.HI/h;1H/q+1;/p-1
InChI Key
MSFPLIAKTHOCQP-UHFFFAOYSA-M
Density
5.68 g/mL at 25 °C (lit.)
Solubility
Insoluble in water
Appearance
Light yellow solid
Application
Silver iodide, a yellow crystalline powder, serves multiple purposes due to its unique properties. In medicine, it is valued for its caustic, astringent, and antiseptic effects, offering therapeutic benefits. Its photosensitivity makes it a vital component in photography, while in meteorology, its structural similarity to ice allows it to facilitate cloud seeding through heterogeneous nucleation, promoting precipitation. Silver iodide's utility extends to the estimation of silver content and serves as a solid lubricant for power contacts, showcasing its versatility across various fields.
Color/Form
Light yellow, powder; crystals are hexagonal or cubic
Covalently-Bonded Unit Count
1
MeSH Entry Terms
silver iodide;silver iodide, 131I-labeled
Monoisotopic Mass
233.80956
Other Experimental
Slowly attacked by boiling concn acids, not affected by hot soln of alkali hydroxides; slowly darkened by light.;It dissolves in the presence of excess iodide ion forming an AgI-2 complex; silver iodide exists in one of three crystal structures depending on the temp, a phenomenon frequently referred to as trimorphism. Below 137 °C, silver iodide is in the cold cubic, or gamma form; at 137-145.8 °C, it exists in the green-yellow colored hexagonal, or beta form; above 145.8 °C, the yellow cubic or alpha form of silver iodide is the stable crystal structure.;Silver iodide has the broadest wavelength sensitivity in the visible spectrum.
Stability
LIGHT SENSITIVE;... SLOWLY DARKENED BY LIGHT.;Protect from light. Soln should be freshly prepared. /Colloidal silver iodide/;Protect from light. Soln should be freshly prepared. /Colloidal silver iodide/
Topological Polar Surface Area
0 Ų
Vapor Pressure
1 MM HG @ 820 °C