Cadmium iodide

Cadmium iodide
Names
	IUPAC name Cadmium(II) iodide
	Other names Cadmium diiodide
Identifiers
CAS Number	7790-80-9 ;
3D model (JSmol)	Interactive image;
ChemSpider	23037 ;
ECHA InfoCard	100.029.294
EC Number	232-223-6;
PubChem CID	277692;
UNII	2F2UPU4KCW ;
CompTox Dashboard (EPA)	DTXSID20894887 ;
	InChI InChI=1S/Cd.2HI/h;21H/q+2;;/p-2 Key: OKIIEJOIXGHUKX-UHFFFAOYSA-L ; InChI=1/Cd.2HI/h;21H/q+2;;/p-2 Key: OKIIEJOIXGHUKX-NUQVWONBAZ;
	SMILES [Cd+2].[I-].[I-];
Properties
Chemical formula	CdI2
Molar mass	366.22 g/mol
Appearance	white to pale yellow crystals
Density	5.640 g/cm3, solid
Melting point	387 °C (729 °F; 660 K)
Boiling point	742 °C (1,368 °F; 1,015 K)
Solubility in water	787 g/L (0 °C) ; 847 g/L (20 °C) ; 1250 g/L (100 °C)
Solubility	soluble in ethanol, acetone, ether and ammonia
Magnetic susceptibility (χ)	−117.2·10−6 cm3/mol
Structure
Crystal structure	Trigonal, hP3, space group P3m1, No. 164
Coordination geometry	octahedral
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H331, H351, H373, H410
Precautionary statements	P260, P280, P301+P330+P331, P304+P340, P310, P311, P403+P233
NFPA 704 (fire diamond)	3 0 0
	NIOSH (US health exposure limits):
PEL (Permissible)	[1910.1027] TWA 0.005 mg/m3 (as Cd)
REL (Recommended)	Ca
IDLH (Immediate danger)	Ca [9 mg/m3 (as Cd)]
Related compounds
Other anions	cadmium fluoride; cadmium chloride; cadmium bromide
Other cations	zinc iodide; mercury(II) iodide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Cadmium iodide is an inorganic compound with the formula CdI₂. It is a white hygroscopic solid. It also can be obtained as a mono- and tetrahydrate. It has few applications. It is notable for its crystal structure, which is typical for compounds of the form MX₂ with strong polarization effects.