Nickel iodide

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OtherNames = Nickelous iodide
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CASNo = 13462-90-3
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Ni = 1 | I = 2
Appearance = black solid
Density = 5.38 g cm^-3
MeltingPtC = 780
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BoilingPtC = 797
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Solubility = good
SolubleOther = alcohols
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Nickel iodide is an inorganic compound with the formula NiI₂. This paramagnetic bluish-black solid dissolves readily in water to give blue-green solutions. [RubberBible86th] The anhydrous material crystallizes with the CdCl₂ motif, featuring octahedral coordination geometry at each Ni(II) center. It readily hydrates and the hydrated from can be prepared by dissolution of nickel oxide, hydroxide, or carbonate in hydroiodic acid.

NiI₂ has found some industrial applications as a catalyst in carbonylation reactions.W. Bertleff, M. Roeper, X. Sava, “Carbonylation” in Ullmann’s Encyclopedia of Industrial Chemistry, Wiley-VCH: Weinheim, 2003. DOI: 10.1002/14356007.a05 217.] It is also used as a reagent in organic synthesis, especially in conjunction with samarium(II) iodide. [Shinichi Saito, Nickel(II) Iodide" in Encyclopedia of Reagents for Organic Synthesis, John Wiley & Sons, 2008. DOI: 10.1002/047084289X.rn00843. Article Online Posting Date: March 14, 2008.]

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