Calcium iodide
(Redirected from Anhydrous calcium iodide)
Overview
Calcium iodide (CaI2) is an ionic compound of calcium and iodine. It is highly soluble in water and it is deliquescent. It is a salt that is solid at room temperature, and it behaves as a typical ionic halide. Because of its hygroscopic nature, it must be kept in tightly-sealed containers. It is similar to calcium chloride in many respects[1]. It is used in photography[2].
Reactions
Henri Moissan first isolated pure calcium metal by reducing calcium iodide with pure sodium metal[3]:
Calcium iodide can be formed by reacting calcium carbonate with hydroiodic acid[4]:
Calcium iodide slowly reacts with oxygen and carbon dioxide in the air, giving free iodine[5].
References
- ↑
Mendeleyev, Dmitry Ivanovich; Kamensky, George (1902), The Principles of Chemistry, New York: P. F. Collier, p. 604, retrieved 2007-12-08 Text " author2-link
" ignored (help); Check date values in:
|accessdate=(help) - ↑
- ↑
Mellor, Joseph William (1912), Modern Inorganic Chemistry, New York: Longmans, Green, and Co, p. 334, retrieved 2007-12-08 Text " author2-link
" ignored (help); Check date values in:
|accessdate=(help) - ↑
Gooch, Frank Austin; Walker, Claude Frederic (1905), Outlines of Inorganic Chemistry, New York: Macmillan, p. 340, retrieved 2007-12-08 Text " author2-link
" ignored (help); Check date values in:
|accessdate=(help) - ↑ Jones, Harry Clary (1906), Principles of Inorganic Chemistry, New York: Macmillan, p. 365, retrieved 2007-12-08 Text " author2-link
" ignored (help); Check date values in:
|accessdate=(help)